-% -*-Scheme-*-
-
-\version "2.10.0"
+%%%% -*- Mode: Scheme -*-
+
+%%%% This file is part of LilyPond, the GNU music typesetter.
+%%%%
+%%%% Copyright (C) 2003--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+%%%% Jan Nieuwenhuizen <janneke@gnu.org>
+%%%%
+%%%% LilyPond is free software: you can redistribute it and/or modify
+%%%% it under the terms of the GNU General Public License as published by
+%%%% the Free Software Foundation, either version 3 of the License, or
+%%%% (at your option) any later version.
+%%%%
+%%%% LilyPond is distributed in the hope that it will be useful,
+%%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
+%%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+%%%% GNU General Public License for more details.
+%%%%
+%%%% You should have received a copy of the GNU General Public License
+%%%% along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+
+\version "2.17.11"
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% this file is alphabetically sorted.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% need SRFI-1 filter
+%% need SRFI-1 for filter; optargs for lambda*
+#(use-modules (srfi srfi-1)
+ (ice-9 optargs))
+
+%% TODO: using define-music-function in a .scm causes crash.
-#(use-modules (srfi srfi-1))
+absolute =
+#(define-music-function (parser location music)
+ (ly:music?)
+ (_i "Make @var{music} absolute. This does not actually change the
+music itself but rather hides it from surrounding @code{\\relative}
+commands.")
+ (make-music 'RelativeOctaveMusic 'element music))
acciaccatura =
-#(def-grace-function startAcciaccaturaMusic stopAcciaccaturaMusic)
+#(def-grace-function startAcciaccaturaMusic stopAcciaccaturaMusic
+ (_i "Create an acciaccatura from the following music expression"))
-addQuote =
-#(define-music-function (parser location name music) (string? ly:music?)
- (_i "Add a piece of music to be quoted ")
- (add-quotable parser name music)
- (make-music 'SequentialMusic 'void #t))
+%% keep these two together
+instrument-definitions = #'()
+addInstrumentDefinition =
+#(define-void-function
+ (parser location name lst) (string? list?)
+ (_i "Create instrument @var{name} with properties @var{list}.")
+ (set! instrument-definitions (acons name lst instrument-definitions)))
-afterGraceFraction =
-#(cons 6 8)
+addQuote =
+#(define-void-function (parser location name music) (string? ly:music?)
+ (_i "Define @var{music} as a quotable music expression named
+@var{name}")
+ (add-quotable parser name music))
+%% keep these two together
+afterGraceFraction = #(cons 6 8)
afterGrace =
-#(define-music-function
- (parser location main grace)
- (ly:music? ly:music?)
-
- (let*
- ((main-length (ly:music-length main))
- (fraction (ly:parser-lookup parser 'afterGraceFraction)))
-
- (make-simultaneous-music
- (list
- main
- (make-sequential-music
- (list
-
- (make-music 'SkipMusic
- 'duration (ly:make-duration
- 0 0
- (* (ly:moment-main-numerator main-length)
- (car fraction))
- (* (ly:moment-main-denominator main-length)
- (cdr fraction)) ))
- (make-music 'GraceMusic
- 'element grace)))))))
+#(define-music-function (parser location main grace) (ly:music? ly:music?)
+ (_i "Create @var{grace} note(s) after a @var{main} music expression.")
+ (let ((main-length (ly:music-length main))
+ (fraction (ly:parser-lookup parser 'afterGraceFraction)))
+ (make-simultaneous-music
+ (list
+ main
+ (make-sequential-music
+ (list
+
+ (make-music 'SkipMusic
+ 'duration (ly:make-duration
+ 0 0
+ (* (ly:moment-main-numerator main-length)
+ (car fraction))
+ (* (ly:moment-main-denominator main-length)
+ (cdr fraction))))
+ (make-music 'GraceMusic
+ 'element grace)))))))
+
+
+%% music identifiers not allowed at top-level,
+%% so this is a music-function instead.
+allowPageTurn =
+#(define-music-function (location parser) ()
+ (_i "Allow a page turn. May be used at toplevel (ie between scores or
+markups), or inside a score.")
+ (make-music 'EventChord
+ 'page-marker #t
+ 'page-turn-permission 'allow
+ 'elements (list (make-music 'PageTurnEvent
+ 'break-permission 'allow))))
+
+alterBroken =
+#(define-music-function (parser location property arg item)
+ (symbol-list-or-symbol? list? symbol-list-or-music?)
+ (_i "Override @var{property} for pieces of broken spanner @var{item}
+with values @var{arg}. @var{item} may either be music in the form of
+a starting spanner event, or a symbol list in the form
+@samp{Context.Grob} or just @samp{Grob}. Iff @var{item} is in the
+form of a spanner event, @var{property} may also have the form
+@samp{Grob.property} for specifying a directed tweak.")
+ (if (ly:music? item)
+ (if (eq? (ly:music-property item 'span-direction) START)
+ #{ \tweak #property #(value-for-spanner-piece arg) #item #}
+ (begin
+ (ly:music-warning item (_ "not a spanner"))
+ item))
+ (let* ((p (check-grob-path item parser location
+ #:default 'Bottom
+ #:min 2
+ #:max 2))
+ (name (and p (second p)))
+ (description
+ (and name (assoc-get name all-grob-descriptions))))
+ (if (and description
+ (member 'spanner-interface
+ (assoc-get 'interfaces
+ (assoc-get 'meta description))))
+ #{
+ \override #item . #property =
+ #(value-for-spanner-piece arg)
+ #}
+ (begin
+ (ly:input-warning location (_ "not a spanner name, `~a'") name)
+ (make-music 'Music))))))
+
+appendToTag =
+#(define-music-function (parser location tag more music)
+ (symbol? ly:music? ly:music?)
+ (_i "Append @var{more} to the @code{elements} of all music
+expressions in @var{music} that are tagged with @var{tag}.")
+ (music-map (lambda (m)
+ (if (memq tag (ly:music-property m 'tags))
+ (set! (ly:music-property m 'elements)
+ (append (ly:music-property m 'elements)
+ (list more))))
+ m)
+ music))
+
+applyContext =
+#(define-music-function (parser location proc) (procedure?)
+ (_i "Modify context properties with Scheme procedure @var{proc}.")
+ (make-music 'ApplyContext
+ 'procedure proc))
applyMusic =
#(define-music-function (parser location func music) (procedure? ly:music?)
- (func music))
-
+ (_i"Apply procedure @var{func} to @var{music}.")
+ (func music))
applyOutput =
#(define-music-function (parser location ctx proc) (symbol? procedure?)
- (make-music 'ApplyOutputEvent
- 'origin location
- 'procedure proc
- 'context-type ctx))
+ (_i "Apply function @code{proc} to every layout object in context @code{ctx}")
+ (make-music 'ApplyOutputEvent
+ 'procedure proc
+ 'context-type ctx))
appoggiatura =
-#(def-grace-function startAppoggiaturaMusic stopAppoggiaturaMusic)
-
-
+#(def-grace-function startAppoggiaturaMusic stopAppoggiaturaMusic
+ (_i "Create an appoggiatura from @var{music}"))
% for regression testing purposes.
assertBeamQuant =
#(define-music-function (parser location l r) (pair? pair?)
- (make-grob-property-override 'Beam 'positions
- (ly:make-simple-closure
- (ly:make-simple-closure
- (append
- (list chain-grob-member-functions `(,cons 0 0))
- (check-quant-callbacks l r))))))
-
+ (_i "Testing function: check whether the beam quants @var{l} and @var{r} are correct")
+ (make-grob-property-override 'Beam 'positions (check-quant-callbacks l r)))
+
% for regression testing purposes.
assertBeamSlope =
#(define-music-function (parser location comp) (procedure?)
- (make-grob-property-override 'Beam 'positions
- (ly:make-simple-closure
- (ly:make-simple-closure
- (append
- (list chain-grob-member-functions `(,cons 0 0))
- (check-slope-callbacks comp))))))
-
-
+ (_i "Testing function: check whether the slope of the beam is the same as @code{comp}")
+ (make-grob-property-override 'Beam 'positions (check-slope-callbacks comp)))
autochange =
#(define-music-function (parser location music) (ly:music?)
- (make-autochange-music parser music))
+ (_i "Make voices that switch between staves automatically")
+ (make-autochange-music parser music))
-applyContext =
-#(define-music-function (parser location proc) (procedure?)
- (make-music 'ApplyContext
- 'origin location
- 'procedure proc))
-balloonText =
-#(define-music-function (parser location offset text) (number-pair? markup?)
-
- (make-music 'AnnotateOutputEvent
- 'X-offset (car offset)
- 'Y-offset (cdr offset)
- 'text text))
-
balloonGrobText =
-#(define-music-function (parser location grob-name offset text) (symbol? number-pair? markup?)
-
- (make-music 'AnnotateOutputEvent
- 'symbol grob-name
- 'X-offset (car offset)
- 'Y-offset (cdr offset)
- 'text text))
+#(define-music-function (parser location grob-name offset text)
+ (symbol? number-pair? markup?)
+ (_i "Attach @var{text} to @var{grob-name} at offset @var{offset}
+ (use like @code{\\once})")
+ (make-event-chord
+ (list
+ (make-music 'AnnotateOutputEvent
+ 'symbol grob-name
+ 'X-offset (car offset)
+ 'Y-offset (cdr offset)
+ 'text text))))
+
+balloonText =
+#(define-event-function (parser location offset text) (number-pair? markup?)
+ (_i "Attach @var{text} at @var{offset} (use like @code{\\tweak})")
+ (make-music 'AnnotateOutputEvent
+ 'X-offset (car offset)
+ 'Y-offset (cdr offset)
+ 'text text))
bar =
-#(define-music-function (parser location type)
- (string?)
+#(define-music-function (parser location type) (string?)
+ (_i "Insert a bar line of type @var{type}")
(context-spec-music
(make-property-set 'whichBar type)
'Timing))
-
barNumberCheck =
#(define-music-function (parser location n) (integer?)
- (make-music 'ApplyContext
- 'origin location
- 'procedure
+ (_i "Print a warning if the current bar number is not @var{n}.")
+ (make-music 'ApplyContext
+ 'procedure
(lambda (c)
- (let*
- ((cbn (ly:context-property c 'currentBarNumber)))
+ (let ((cbn (ly:context-property c 'currentBarNumber)))
(if (and (number? cbn) (not (= cbn n)))
- (ly:input-message location "Barcheck failed got ~a expect ~a"
+ (ly:input-warning location
+ "Barcheck failed got ~a expect ~a"
cbn n))))))
-
-%% why a function?
+bendAfter =
+#(define-event-function (parser location delta) (real?)
+ (_i "Create a fall or doit of pitch interval @var{delta}.")
+ (make-music 'BendAfterEvent
+ 'delta-step delta))
+
+bookOutputName =
+#(define-void-function (parser location newfilename) (string?)
+ (_i "Direct output for the current book block to @var{newfilename}.")
+ (set! (paper-variable parser #f 'output-filename) newfilename))
+
+bookOutputSuffix =
+#(define-void-function (parser location newsuffix) (string?)
+ (_i "Set the output filename suffix for the current book block to
+@var{newsuffix}.")
+ (set! (paper-variable parser #f 'output-suffix) newsuffix))
+
+%% \breathe is defined as a music function rather than an event identifier to
+%% ensure it gets useful input location information: as an event identifier,
+%% it would have to be wrapped in an EventChord to prevent it from being
+%% treated as a post_event by the parser
breathe =
#(define-music-function (parser location) ()
- (make-music 'EventChord
- 'origin location
- 'elements (list (make-music 'BreathingEvent))))
-
-bendAfter =
-#(define-music-function (parser location delta) (real?)
-
- (make-music 'BendAfterEvent
- 'delta-step delta))
+ (_i "Insert a breath mark.")
+ (make-music 'BreathingEvent))
clef =
-#(define-music-function (parser location type)
- (string?)
- (_i "Set the current clef.")
-
+#(define-music-function (parser location type) (string?)
+ (_i "Set the current clef to @var{type}.")
(make-clef-set type))
-compressMusic =
+compoundMeter =
+#(define-music-function (parser location args) (pair?)
+ (_i "Create compound time signatures. The argument is a Scheme list of
+lists. Each list describes one fraction, with the last entry being the
+denominator, while the first entries describe the summands in the
+enumerator. If the time signature consists of just one fraction,
+the list can be given directly, i.e. not as a list containing a single list.
+For example, a time signature of (3+1)/8 + 2/4 would be created as
+@code{\\compoundMeter #'((3 1 8) (2 4))}, and a time signature of (3+2)/8
+as @code{\\compoundMeter #'((3 2 8))} or shorter
+@code{\\compoundMeter #'(3 2 8)}.")
+ (let* ((mlen (calculate-compound-measure-length args))
+ (beat (calculate-compound-base-beat args))
+ (beatGrouping (calculate-compound-beat-grouping args))
+ (timesig (cons (ly:moment-main-numerator mlen)
+ (ly:moment-main-denominator mlen))))
+ #{
+ \once \override Staff.TimeSignature.stencil = #(lambda (grob)
+ (grob-interpret-markup grob (format-compound-time args)))
+ \set Timing.timeSignatureFraction = #timesig
+ \set Timing.baseMoment = #beat
+ \set Timing.beatStructure = #beatGrouping
+ \set Timing.beamExceptions = #'()
+ \set Timing.measureLength = #mlen
+ #} ))
+
+crossStaff =
+#(define-music-function (parser location notes) (ly:music?)
+ (_i "Create cross-staff stems")
+ #{
+ \temporary \override Stem.cross-staff = #cross-staff-connect
+ \temporary \override Flag.style = #'no-flag
+ #notes
+ \revert Stem.cross-staff
+ \revert Flag.style
+#})
+
+cueClef =
+#(define-music-function (parser location type) (string?)
+ (_i "Set the current cue clef to @var{type}.")
+ (make-cue-clef-set type))
+
+cueClefUnset =
+#(define-music-function (parser location) ()
+ (_i "Unset the current cue clef.")
+ (make-cue-clef-unset))
+
+cueDuring =
+#(define-music-function
+ (parser location what dir main-music) (string? ly:dir? ly:music?)
+ (_i "Insert contents of quote @var{what} corresponding to @var{main-music},
+in a CueVoice oriented by @var{dir}.")
+ (make-music 'QuoteMusic
+ 'element main-music
+ 'quoted-context-type 'CueVoice
+ 'quoted-context-id "cue"
+ 'quoted-music-name what
+ 'quoted-voice-direction dir))
+
+cueDuringWithClef =
#(define-music-function
- (parser location fraction music) (number-pair? ly:music?)
- (ly:music-compress music (ly:make-moment (car fraction) (cdr fraction))))
+ (parser location what dir clef main-music) (string? ly:dir? string? ly:music?)
+ (_i "Insert contents of quote @var{what} corresponding to @var{main-music},
+in a CueVoice oriented by @var{dir}.")
+ (make-music 'QuoteMusic
+ 'element main-music
+ 'quoted-context-type 'CueVoice
+ 'quoted-context-id "cue"
+ 'quoted-music-name what
+ 'quoted-music-clef clef
+ 'quoted-voice-direction dir))
-cueDuring =
-#(define-music-function
- (parser location what dir main-music)
- (string? ly:dir? ly:music?)
- (make-music 'QuoteMusic
- 'element main-music
- 'quoted-context-type 'Voice
- 'quoted-context-id "cue"
- 'quoted-music-name what
- 'quoted-voice-direction dir
- 'origin location))
displayLilyMusic =
#(define-music-function (parser location music) (ly:music?)
+ (_i "Display the LilyPond input representation of @var{music}
+to the console.")
(newline)
(display-lily-music music parser)
music)
displayMusic =
#(define-music-function (parser location music) (ly:music?)
+ (_i "Display the internal representation of @var{music} to the console.")
(newline)
(display-scheme-music music)
music)
+displayScheme =
+#(define-scheme-function (parser location expr) (scheme?)
+ (_i "Display the internal representation of @var{expr} to the console.")
+ (newline)
+ (display-scheme-music expr)
+ expr)
+
+
endSpanners =
#(define-music-function (parser location music) (ly:music?)
- (if (eq? (ly:music-property music 'name) 'EventChord)
- (let*
- ((elts (ly:music-property music 'elements))
- (start-span-evs (filter (lambda (ev)
- (and (music-has-type ev 'span-event)
- (equal? (ly:music-property ev 'span-direction)
- START)))
- elts))
- (stop-span-evs
- (map (lambda (m)
- (let* ((c (music-clone m)))
- (set! (ly:music-property c 'span-direction) STOP)
- c))
- start-span-evs))
- (end-ev-chord (make-music 'EventChord
- 'elements stop-span-evs))
- (total (make-music 'SequentialMusic
- 'elements (list music
- end-ev-chord))))
- total)
-
- (ly:input-message location (_ "argument endSpanners is not an EventChord: ~a" music))))
+ (_i "Terminate the next spanner prematurely after exactly one note
+without the need of a specific end spanner.")
+ (let* ((start-span-evs (filter (lambda (ev)
+ (equal? (ly:music-property ev 'span-direction)
+ START))
+ (extract-typed-music music 'span-event)))
+ (stop-span-evs
+ (map (lambda (m)
+ (music-clone m 'span-direction STOP))
+ start-span-evs))
+ (end-ev-chord (make-music 'EventChord
+ 'elements stop-span-evs))
+ (total (make-music 'SequentialMusic
+ 'elements (list music
+ end-ev-chord))))
+ total))
+
+eventChords =
+#(define-music-function (parser location music) (ly:music?)
+ (_i "Compatibility function wrapping @code{EventChord} around
+isolated rhythmic events occuring since version 2.15.28, after
+expanding repeat chords @samp{q}.")
+ (event-chord-wrap! music parser))
featherDurations=
#(define-music-function (parser location factor argument) (ly:moment? ly:music?)
- (_i "Rearrange durations in ARGUMENT so there is an
-acceleration/deceleration. ")
-
- (let*
- ((orig-duration (ly:music-length argument))
- (multiplier (ly:make-moment 1 1)))
-
- (music-map
+ (_i "Adjust durations of music in @var{argument} by rational @var{factor}.")
+ (let ((orig-duration (ly:music-length argument))
+ (multiplier (ly:make-moment 1 1)))
+
+ (for-each
(lambda (mus)
- (if (and (eq? (ly:music-property mus 'name) 'EventChord)
- (< 0 (ly:moment-main-denominator (ly:music-length mus))))
+ (if (< 0 (ly:moment-main-denominator (ly:music-length mus)))
(begin
(ly:music-compress mus multiplier)
- (set! multiplier (ly:moment-mul factor multiplier)))
- )
- mus)
- argument)
-
+ (set! multiplier (ly:moment-mul factor multiplier)))))
+ (extract-named-music argument '(EventChord NoteEvent RestEvent SkipEvent)))
(ly:music-compress
argument
(ly:moment-div orig-duration (ly:music-length argument)))
argument))
-grace =
-#(def-grace-function startGraceMusic stopGraceMusic)
-
-
-"instrument-definitions" = #'()
-
-addInstrumentDefinition =
-#(define-music-function
- (parser location name lst) (string? list?)
-
- (set! instrument-definitions (acons name lst instrument-definitions))
-
- (make-music 'SequentialMusic 'void #t))
+finger =
+#(define-event-function (parser location finger) (number-or-markup?)
+ (_i "Apply @var{finger} as a fingering indication.")
+
+ (make-music
+ 'FingeringEvent
+ (if (number? finger) 'digit 'text)
+ finger))
+
+footnote =
+#(define-music-function (parser location mark offset footnote item)
+ ((markup?) number-pair? markup? symbol-list-or-music?)
+ (_i "Make the markup @var{footnote} a footnote on @var{item}. The
+footnote is marked with a markup @var{mark} moved by @var{offset} with
+respect to the marked music.
+
+If @var{mark} is not given or specified as @var{\\default}, it is
+replaced by an automatically generated sequence number. If @var{item}
+is a symbol list of form @samp{Grob} or @samp{Context.Grob}, then
+grobs of that type will be marked at the current time step in the
+given context (default @code{Bottom}).
+
+If @var{item} is music, the music will get a footnote attached to a
+grob immediately attached to the event, like @var{\\tweak} does. For
+attaching a footnote to an @emph{indirectly} caused grob, write
+@code{\\single\\footnote}, use @var{item} to specify the grob, and
+follow it with the music to annotate.
+
+Like with @code{\\tweak}, if you use a footnote on a following
+post-event, the @code{\\footnote} command itself needs to be attached
+to the preceding note or rest as a post-event with @code{-}.")
+ (let ((mus (make-music
+ 'FootnoteEvent
+ 'X-offset (car offset)
+ 'Y-offset (cdr offset)
+ 'automatically-numbered (not mark)
+ 'text (or mark (make-null-markup))
+ 'footnote-text footnote)))
+ #{ \once \tweak footnote-music #mus #item #}))
+grace =
+#(def-grace-function startGraceMusic stopGraceMusic
+ (_i "Insert @var{music} as grace notes."))
+
+grobdescriptions =
+#(define-scheme-function (parser location descriptions) (list?)
+ (_i "Create a context modification from @var{descriptions}, a list
+in the format of @code{all-grob-descriptions}.")
+ (ly:make-context-mod
+ (map (lambda (p)
+ (list 'assign (car p) (list (cdr p))))
+ descriptions)))
+
+harmonicByFret = #(define-music-function (parser location fret music) (number? ly:music?)
+ (_i "Convert @var{music} into mixed harmonics; the resulting notes resemble
+harmonics played on a fretted instrument by touching the strings at @var{fret}.")
+ #{
+ \set harmonicDots = ##t
+ \temporary \override TabNoteHead.stencil = #(tab-note-head::print-custom-fret-label (number->string fret))
+ \temporary \override NoteHead.Y-extent = #grob::always-Y-extent-from-stencil
+ \temporary \override NoteHead.stencil = #(lambda (grob) (ly:grob-set-property! grob 'style 'harmonic-mixed)
+ (ly:note-head::print grob))
+ #(make-harmonic
+ (calc-harmonic-pitch (fret->pitch (number->string fret)) music))
+ \unset harmonicDots
+ \revert TabNoteHead.stencil
+ \revert NoteHead.Y-extent
+ \revert NoteHead.stencil
+ #})
+
+harmonicByRatio = #(define-music-function (parser location ratio music) (number? ly:music?)
+ (_i "Convert @var{music} into mixed harmonics; the resulting notes resemble
+harmonics played on a fretted instrument by touching the strings at the point
+given through @var{ratio}.")
+ #{
+ \set harmonicDots = ##t
+ \temporary \override TabNoteHead.stencil = #(tab-note-head::print-custom-fret-label (ratio->fret ratio))
+ \temporary \override NoteHead.Y-extent = #(ly:make-unpure-pure-container ly:grob::stencil-height
+ (lambda (grob start end)
+ (ly:grob::stencil-height grob)))
+ \temporary \override NoteHead.stencil = #(lambda (grob) (ly:grob-set-property! grob 'style 'harmonic-mixed)
+ (ly:note-head::print grob))
+ #(make-harmonic
+ (calc-harmonic-pitch (ratio->pitch ratio) music))
+ \unset harmonicDots
+ \revert TabNoteHead.stencil
+ \revert NoteHead.Y-extent
+ \revert NoteHead.stencil
+ #})
+
+hide =
+#(define-music-function (parser location item) (symbol-list-or-music?)
+ (_i "Set @var{item}'s @samp{transparent} property to @code{#t},
+making it invisible while still retaining its dimensions.
+
+If @var{item} is a symbol list of form @code{GrobName} or
+@code{Context.GrobName}, the result is an override for the grob name
+specified by it. If @var{item} is a music expression, the result is
+the same music expression with an appropriate tweak applied to it.")
+ #{ \tweak transparent ##t #item #})
+
+inStaffSegno =
+#(define-music-function (parser location) ()
+ (_i "Put the segno variant 'varsegno' at this position into the staff,
+compatible with the repeat command.")
+ (make-music 'ApplyContext
+ 'procedure
+ (lambda (ctx)
+ (let ((score-ctx (ly:context-find ctx 'Score)))
+ (if (ly:context? score-ctx)
+ (let ((old-rc (ly:context-property score-ctx 'repeatCommands '())))
+ (if (eq? (memq 'segno-display old-rc) #f)
+ (ly:context-set-property! score-ctx 'repeatCommands (cons 'segno-display old-rc)))))))))
instrumentSwitch =
#(define-music-function
(parser location name) (string?)
- (let*
- ((handle (assoc name instrument-definitions))
- (instrument-def (if handle (cdr handle) '()))
- )
+ (_i "Switch instrument to @var{name}, which must be predefined with
+@code{\\addInstrumentDefinition}.")
+ (let* ((handle (assoc name instrument-definitions))
+ (instrument-def (if handle (cdr handle) '())))
(if (not handle)
- (ly:input-message "No such instrument: ~a" name))
+ (ly:input-warning location "No such instrument: ~a" name))
(context-spec-music
(make-music 'SimultaneousMusic
'elements
'Staff)))
-keepWithTag =
-#(define-music-function
- (parser location tag music) (symbol? ly:music?)
- (music-filter
- (lambda (m)
- (let* ((tags (ly:music-property m 'tags))
- (res (memq tag tags)))
- (or
- (eq? tags '())
- res)))
- music))
-
+keepWithTag =
+#(define-music-function (parser location tag music)
+ (symbol-list-or-symbol? ly:music?)
+ (_i "Include only elements of @var{music} that are either untagged
+or tagged with one of the tags in @var{tag}. @var{tag} may be either
+a single symbol or a list of symbols.")
+ (music-filter
+ (if (symbol? tag)
+ (lambda (m)
+ (let ((music-tags (ly:music-property m 'tags)))
+ (or (null? music-tags)
+ (memq tag music-tags))))
+ (lambda (m)
+ (let ((music-tags (ly:music-property m 'tags)))
+ (or (null? music-tags)
+ (any (lambda (t) (memq t music-tags)) tag)))))
+ music))
+
+key =
+#(define-music-function (parser location tonic pitch-alist)
+ ((ly:pitch? '()) (list? '()))
+ (_i "Set key to @var{tonic} and scale @var{pitch-alist}.
+If both are null, just generate @code{KeyChangeEvent}.")
+ (cond ((null? tonic) (make-music 'KeyChangeEvent))
+ ((null? pitch-alist)
+ (ly:parser-error parser (_ "second argument must be pitch list")
+ location)
+ (make-music 'SequentialMusic 'void #t))
+ (else
+ (ly:music-transpose
+ (make-music 'KeyChangeEvent
+ 'tonic (ly:make-pitch 0 0 0)
+ 'pitch-alist pitch-alist)
+ tonic))))
killCues =
-#(define-music-function
- (parser location music)
- (ly:music?)
+#(define-music-function (parser location music) (ly:music?)
+ (_i "Remove cue notes from @var{music}.")
(music-map
(lambda (mus)
- (if (string? (ly:music-property mus 'quoted-music-name))
+ (if (and (string? (ly:music-property mus 'quoted-music-name))
+ (string=? (ly:music-property mus 'quoted-context-id "") "cue"))
(ly:music-property mus 'element)
- mus)) music))
+ mus))
+ music))
-label =
+
+
+label =
#(define-music-function (parser location label) (symbol?)
- (_i "Place a bookmarking label, either at top-level or inside music.")
+ (_i "Create @var{label} as a bookmarking label.")
(make-music 'EventChord
'page-marker #t
'page-label label
'elements (list (make-music 'LabelEvent
- 'page-label label))))
+ 'page-label label))))
+
+
+language =
+#(define-void-function (parser location language) (string?)
+ (_i "Set note names for language @var{language}.")
+ (note-names-language parser language))
+
+languageSaveAndChange =
+#(define-void-function (parser location language) (string?)
+ (_i "Store the previous pitchnames alist, and set a new one.")
+ (set! previous-pitchnames pitchnames)
+ (note-names-language parser language))
+
+languageRestore =
+#(define-void-function (parser location) ()
+ (_i "Restore a previously-saved pitchnames alist.")
+ (if previous-pitchnames
+ (begin
+ (set! pitchnames previous-pitchnames)
+ (ly:parser-set-note-names parser pitchnames))
+ (ly:input-warning location (_ "No other language was defined previously. Ignoring."))))
+
makeClusters =
+#(define-music-function (parser location arg) (ly:music?)
+ (_i "Display chords in @var{arg} as clusters.")
+ (music-map note-to-cluster arg))
+
+modalInversion =
+#(define-music-function (parser location around to scale music)
+ (ly:pitch? ly:pitch? ly:music? ly:music?)
+ (_i "Invert @var{music} about @var{around} using @var{scale} and
+transpose from @var{around} to @var{to}.")
+ (let ((inverter (make-modal-inverter around to scale)))
+ (change-pitches music inverter)
+ music))
+
+modalTranspose =
+#(define-music-function (parser location from to scale music)
+ (ly:pitch? ly:pitch? ly:music? ly:music?)
+ (_i "Transpose @var{music} from pitch @var{from} to pitch @var{to}
+using @var{scale}.")
+ (let ((transposer (make-modal-transposer from to scale)))
+ (change-pitches music transposer)
+ music))
+
+inversion =
#(define-music-function
- (parser location arg) (ly:music?)
- (music-map note-to-cluster arg))
+ (parser location around to music) (ly:pitch? ly:pitch? ly:music?)
+ (_i "Invert @var{music} about @var{around} and
+transpose from @var{around} to @var{to}.")
+ (music-invert around to music))
+
+mark =
+#(define-music-function
+ (parser location label) ((scheme? '()))
+ "Make the music for the \\mark command."
+ (let* ((set (and (integer? label)
+ (context-spec-music (make-property-set 'rehearsalMark label)
+ 'Score)))
+ (ev (make-music 'MarkEvent
+ 'origin location)))
+
+ (if set
+ (make-sequential-music (list set ev))
+ (begin
+ (set! (ly:music-property ev 'label) label)
+ ev))))
musicMap =
#(define-music-function (parser location proc mus) (procedure? ly:music?)
- (music-map proc mus))
+ (_i "Apply @var{proc} to @var{mus} and all of the music it contains.")
+ (music-map proc mus))
+%% noPageBreak and noPageTurn are music functions (not music indentifiers),
+%% because music identifiers are not allowed at top-level.
+noPageBreak =
+#(define-music-function (location parser) ()
+ (_i "Forbid a page break. May be used at toplevel (i.e., between scores or
+markups), or inside a score.")
+ (make-music 'EventChord
+ 'page-marker #t
+ 'page-break-permission 'forbid
+ 'elements (list (make-music 'PageBreakEvent
+ 'break-permission '()))))
+
+noPageTurn =
+#(define-music-function (location parser) ()
+ (_i "Forbid a page turn. May be used at toplevel (i.e., between scores or
+markups), or inside a score.")
+ (make-music 'EventChord
+ 'page-marker #t
+ 'page-turn-permission 'forbid
+ 'elements (list (make-music 'PageTurnEvent
+ 'break-permission '()))))
-oldaddlyrics =
-#(define-music-function (parser location music lyrics) (ly:music? ly:music?)
- (make-music 'OldLyricCombineMusic
- 'origin location
- 'elements (list music lyrics)))
+octaveCheck =
+#(define-music-function (parser location pitch) (ly:pitch?)
+ (_i "Octave check.")
+ (make-music 'RelativeOctaveCheck
+ 'pitch pitch))
+
+offset =
+#(define-music-function (parser location property offsets item)
+ (symbol-list-or-symbol? scheme? symbol-list-or-music?)
+ (_i "Offset the default value of @var{property} of @var{item} by
+@var{offsets}. If @var{item} is a string, the result is
+@code{\\override} for the specified grob type. If @var{item} is
+a music expression, the result is the same music expression with an
+appropriate tweak applied.")
+ (if (ly:music? item)
+ ; In case of a tweak, grob property path is Grob.property
+ (let ((prop-path (check-grob-path
+ (if (symbol? property)
+ (list property)
+ property)
+ parser location
+ #:start 1 #:default #t #:min 2 #:max 2)))
+ (if prop-path
+ ; If the head of the grob property path is a symbol--i.e.,
+ ; a grob name, produce a directed tweak. Otherwise, create
+ ; an ordinary tweak.
+ (if (symbol? (car prop-path))
+ #{
+ \tweak #prop-path #(offsetter (second prop-path) offsets) #item
+ #}
+ #{
+ \tweak #(second prop-path) #(offsetter (second prop-path) offsets) #item
+ #})
+ item))
+ ; In case of an override, grob property path is Context.Grob.property.
+ (let ((prop-path (check-grob-path
+ (append item
+ (if (symbol? property)
+ (list property)
+ property))
+ parser location
+ #:default 'Bottom #:min 3 #:max 3)))
+ (if prop-path
+ #{
+ \override #prop-path = #(offsetter (third prop-path) offsets)
+ #}
+ (make-music 'Music)))))
+
+omit =
+#(define-music-function (parser location item) (symbol-list-or-music?)
+ (_i "Set @var{item}'s @samp{stencil} property to @code{#f},
+effectively omitting it without taking up space.
+
+If @var{item} is a symbol list of form @code{GrobName} or
+@code{Context.GrobName}, the result is an override for the grob name
+specified by it. If @var{item} is a music expression, the result is
+the same music expression with an appropriate tweak applied to it.")
+ #{ \tweak stencil ##f #item #})
+
+once =
+#(define-music-function (parser location music) (ly:music?)
+ (_i "Set @code{once} to @code{#t} on all layout instruction events
+in @var{music}. This will complain about music with an actual
+duration. As a special exception, if @var{music} contains
+@samp{tweaks} it will be silently ignored in order to allow for
+@code{\\once \\tweak} to work as both one-time override and proper
+tweak.")
+ (if (not (pair? (ly:music-property music 'tweaks)))
+ (for-some-music
+ (lambda (m)
+ (cond ((music-is-of-type? m 'layout-instruction-event)
+ (set! (ly:music-property m 'once) #t)
+ #t)
+ ((ly:duration? (ly:music-property m 'duration))
+ (ly:music-warning m (_ "Cannot apply \\once to timed music"))
+ #t)
+ (else #f)))
+ music))
+ music)
+
+ottava =
+#(define-music-function (parser location octave) (integer?)
+ (_i "Set the octavation.")
+ (make-music 'OttavaMusic
+ 'ottava-number octave))
+
+overrideTimeSignatureSettings =
+#(define-music-function
+ (parser location time-signature base-moment beat-structure beam-exceptions)
+ (fraction? fraction? list? list?)
+
+ (_i "Override @code{timeSignatureSettings}
+for time signatures of @var{time-signature} to have settings
+of @var{base-moment}, @var{beat-structure}, and @var{beam-exceptions}.")
+ ;; TODO -- add warning if largest value of grouping is
+ ;; greater than time-signature.
+ (let ((setting (make-setting base-moment beat-structure beam-exceptions)))
+ (override-time-signature-setting time-signature setting)))
overrideProperty =
-#(define-music-function (parser location name property value)
- (string? symbol? scheme?)
-
-
- (_i "Set @var{property} to @var{value} in all grobs named @var{name}.
-The @var{name} argument is a string of the form @code{\"Context.GrobName\"}
-or @code{\"GrobName\"}")
-
- (let*
- ((name-components (string-split name #\.))
- (context-name 'Bottom)
- (grob-name #f))
-
- (if (> 2 (length name-components))
- (set! grob-name (string->symbol (car name-components)))
- (begin
- (set! grob-name (string->symbol (list-ref name-components 1)))
- (set! context-name (string->symbol (list-ref name-components 0)))))
-
- (make-music 'ApplyOutputEvent
- 'origin location
- 'context-type context-name
- 'procedure
- (lambda (grob orig-context context)
- (if (equal?
- (cdr (assoc 'name (ly:grob-property grob 'meta)))
- grob-name)
- (set! (ly:grob-property grob property) value))))))
-
-%% These are music functions (iso music indentifiers), because music identifiers
-%% are not allowed at top-level.
+#(define-music-function (parser location grob-property-path value)
+ (symbol-list? scheme?)
+
+ (_i "Set the grob property specified by @var{grob-property-path} to
+@var{value}. @var{grob-property-path} is a symbol list of the form
+@code{Context.GrobName.property} or @code{GrobName.property}, possibly
+with subproperties given as well.")
+ (let ((p (check-grob-path grob-property-path parser location
+ #:default 'Bottom
+ #:min 3)))
+ (if p
+ (make-music 'ApplyOutputEvent
+ 'context-type (first p)
+ 'procedure
+ (lambda (grob orig-context context)
+ (if (equal?
+ (cdr (assoc 'name (ly:grob-property grob 'meta)))
+ (second p))
+ (ly:grob-set-nested-property!
+ grob (cddr p) value))))
+ (make-music 'Music))))
+
+
+
+
+
+
+%% pageBreak and pageTurn are music functions (iso music indentifiers),
+%% because music identifiers are not allowed at top-level.
pageBreak =
#(define-music-function (location parser) ()
- (_i "Force a page break. May be used at toplevel (ie between scores or
+ (_i "Force a page break. May be used at toplevel (i.e., between scores or
markups), or inside a score.")
(make-music 'EventChord
'page-marker #t
(make-music 'PageBreakEvent
'break-permission 'force))))
-noPageBreak =
-#(define-music-function (location parser) ()
- (_i "Forbid a page break. May be used at toplevel (ie between scores or
-markups), or inside a score.")
- (make-music 'EventChord
- 'page-marker #t
- 'page-break-permission 'forbid
- 'elements (list (make-music 'PageBreakEvent
- 'break-permission '()))))
-
pageTurn =
#(define-music-function (location parser) ()
(_i "Force a page turn between two scores or top-level markups.")
- (make-music 'EventChord
+ (make-music 'EventChord
'page-marker #t
'line-break-permission 'force
'page-break-permission 'force
(make-music 'PageTurnEvent
'break-permission 'force))))
-noPageTurn =
-#(define-music-function (location parser) ()
- (_i "Forbid a page turn. May be used at toplevel (ie between scores or
-markups), or inside a score.")
- (make-music 'EventChord
- 'page-marker #t
- 'page-turn-permission 'forbid
- 'elements (list (make-music 'PageTurnEvent
- 'break-permission '()))))
-
-allowPageTurn =
-#(define-music-function (location parser) ()
- (_i "Allow a page turn. May be used at toplevel (ie between scores or
-markups), or inside a score.")
- (make-music 'EventChord
- 'page-marker #t
- 'page-turn-permission 'allow
- 'elements (list (make-music 'PageTurnEvent
- 'break-permission 'allow))))
-
-removeWithTag =
-#(define-music-function
- (parser location tag music) (symbol? ly:music?)
- (music-filter
- (lambda (m)
- (let* ((tags (ly:music-property m 'tags))
- (res (memq tag tags)))
- (not res)))
- music))
-
-%% Todo:
-%% doing
-%% define-music-function in a .scm causes crash.
-
-octave =
-#(define-music-function (parser location pitch-note) (ly:music?)
- (_i "octave check")
-
- (make-music 'RelativeOctaveCheck
- 'origin location
- 'pitch (pitch-of-note pitch-note)
- ))
-partcombine =
-#(define-music-function (parser location part1 part2) (ly:music? ly:music?)
- (make-part-combine-music parser
- (list part1 part2)))
-
-
-pitchedTrill =
-#(define-music-function
- (parser location main-note secondary-note)
- (ly:music? ly:music?)
- (let*
- ((get-notes (lambda (ev-chord)
- (filter
- (lambda (m) (eq? 'NoteEvent (ly:music-property m 'name)))
- (ly:music-property ev-chord 'elements))))
- (sec-note-events (get-notes secondary-note))
- (trill-events (filter (lambda (m) (music-has-type m 'trill-span-event))
- (ly:music-property main-note 'elements)))
-
- (trill-pitch
- (if (pair? sec-note-events)
- (ly:music-property (car sec-note-events) 'pitch)
- )))
-
- (if (ly:pitch? trill-pitch)
- (for-each (lambda (m) (ly:music-set-property! m 'pitch trill-pitch))
- trill-events)
- (begin
- (ly:warning (_ "Second argument of \\pitchedTrill should be single note: "))
- (display sec-note-events)))
-
- main-note))
-
-parenthesize =
-#(define-music-function (parser loc arg) (ly:music?)
- (_i "Tag @var{arg} to be parenthesized.")
-
- (if (memq 'event-chord (ly:music-property arg 'types))
- ; arg is an EventChord -> set the parenthesize property on all child notes and rests
- (map
- (lambda (ev)
- (if (or (memq 'note-event (ly:music-property ev 'types))
- (memq 'rest-event (ly:music-property ev 'types)))
- (set! (ly:music-property ev 'parenthesize) #t)))
- (ly:music-property arg 'elements))
- ; No chord, simply set property for this expression:
- (set! (ly:music-property arg 'parenthesize) #t))
- arg)
-
-%% for lambda*
-#(use-modules (ice-9 optargs))
-
parallelMusic =
-#(define-music-function (parser location voice-ids music) (list? ly:music?)
- (_i "Define parallel music sequences, separated by '|' (bar check signs),
+#(define-void-function (parser location voice-ids music) (list? ly:music?)
+ (_i "Define parallel music sequences, separated by '|' (bar check signs),
and assign them to the identifiers provided in @var{voice-ids}.
@var{voice-ids}: a list of music identifiers (symbols containing only letters)
C = { e e | f f | }
@end verbatim
")
- (let* ((voices (apply circular-list (make-list (length voice-ids) (list))))
- (current-voices voices)
- (current-sequence (list)))
- ;;
- ;; utilities
- (define (push-music m)
- "Push the music expression into the current sequence"
- (set! current-sequence (cons m current-sequence)))
- (define (change-voice)
- "Stores the previously built sequence into the current voice and
+ (define (bar-check? m)
+ "Checks whether m is a bar check."
+ (eq? (ly:music-property m 'name) 'BarCheck))
+ (define (recurse-and-split music)
+ "This returns either a list of music split along barchecks, or
+@code{#f}."
+ (let ((elt (ly:music-property music 'element))
+ (elts (ly:music-property music 'elements)))
+ (cond ((ly:music? elt)
+ (let ((lst (recurse-and-split elt)))
+ (and lst
+ (map
+ (lambda (x)
+ (let ((res (music-clone music 'element x)))
+ (if (ly:input-location?
+ (ly:music-property x 'origin))
+ (set! (ly:music-property res 'origin)
+ (ly:music-property x 'origin)))
+ res))
+ lst))))
+ ((any bar-check? elts)
+ (let* ((voices (apply circular-list
+ (make-list (length voice-ids)
+ '())))
+ (current-voices voices)
+ (current-sequence '()))
+ ;;
+ ;; utilities
+ (define (push-music m)
+ "Push the music expression into the current sequence"
+ (set! current-sequence (cons m current-sequence)))
+ (define (change-voice)
+ "Stores the previously built sequence into the current voice and
change to the following voice."
- (list-set! current-voices 0 (cons (make-music 'SequentialMusic
- 'elements (reverse! current-sequence))
- (car current-voices)))
- (set! current-sequence (list))
- (set! current-voices (cdr current-voices)))
- (define (bar-check? m)
- "Checks whether m is a bar check."
- (eq? (ly:music-property m 'name) 'BarCheck))
- (define (music-origin music)
- "Recursively search an origin location stored in music."
- (cond ((null? music) #f)
- ((not (null? (ly:music-property music 'origin)))
- (ly:music-property music 'origin))
- (else (or (music-origin (ly:music-property music 'element))
- (let ((origins (remove not (map music-origin
- (ly:music-property music 'elements)))))
- (and (not (null? origins)) (car origins)))))))
- ;;
- ;; first, split the music and fill in voices
- (map-in-order (lambda (m)
- (push-music m)
- (if (bar-check? m) (change-voice)))
- (ly:music-property music 'elements))
- (if (not (null? current-sequence)) (change-voice))
- ;; un-circularize `voices' and reorder the voices
- (set! voices (map-in-order (lambda (dummy seqs)
- (reverse! seqs))
- voice-ids voices))
- ;;
- ;; set origin location of each sequence in each voice
- ;; for better type error tracking
- (for-each (lambda (voice)
- (for-each (lambda (seq)
- (set! (ly:music-property seq 'origin)
- (or (music-origin seq) location)))
- voice))
- voices)
- ;;
- ;; check sequence length
- (apply for-each (lambda* (#:rest seqs)
- (let ((moment-reference (ly:music-length (car seqs))))
- (for-each (lambda (seq moment)
- (if (not (equal? moment moment-reference))
- (ly:music-message seq
- "Bars in parallel music don't have the same length")))
- seqs (map-in-order ly:music-length seqs))))
- voices)
- ;;
- ;; bind voice identifiers to the voices
- (map (lambda (voice-id voice)
- (ly:parser-define! parser voice-id
- (make-music 'SequentialMusic
- 'origin location
- 'elements voice)))
- voice-ids voices))
- ;; Return an empty sequence. this function is actually a "void" function.
- (make-music 'SequentialMusic 'void #t))
-
-
-
-quoteDuring = #
-(define-music-function
- (parser location what main-music)
- (string? ly:music?)
- (make-music 'QuoteMusic
- 'element main-music
- 'quoted-music-name what
- 'origin location))
-
-
-
-resetRelativeOctave =
-#(define-music-function
- (parser location reference-note)
- (ly:music?)
- (_i "Set the octave inside a \\relative section.")
+ (set-car! current-voices
+ (cons (reverse! current-sequence)
+ (car current-voices)))
+ (set! current-sequence '())
+ (set! current-voices (cdr current-voices)))
+ (for-each (lambda (m)
+ (let ((split? (recurse-and-split m)))
+ (if split?
+ (for-each
+ (lambda (m)
+ (push-music m)
+ (change-voice))
+ split?)
+ (begin
+ (push-music m)
+ (if (bar-check? m) (change-voice))))))
+ elts)
+ (if (pair? current-sequence) (change-voice))
+ ;; un-circularize `voices' and reorder the voices
+
+ (set! voices (map reverse!
+ (list-head voices (length voice-ids))))
+
+ ;; check sequence length
+ (apply for-each (lambda seqs
+ (define (seq-len seq)
+ (reduce ly:moment-add
+ (ly:make-moment 0)
+ (map ly:music-length seq)))
+ (let ((moment-reference (seq-len (car seqs))))
+ (for-each (lambda (seq)
+ (if (not (equal? (seq-len seq)
+ moment-reference))
+ (ly:music-warning
+ (if (pair? seq)
+ (last seq)
+ (caar seqs))
+ (_ "Bars in parallel music don't have the same length"))))
+ seqs)))
+ voices)
+ (map
+ (lambda (lst)
+ (set! lst (concatenate! lst))
+ (let ((res (music-clone music 'elements lst)))
+ (if (and (pair? lst)
+ (ly:input-location? (ly:music-property
+ (car lst)
+ 'origin)))
+ (set! (ly:music-property res 'origin)
+ (ly:music-property (car lst) 'origin)))
+ res))
+ voices)))
+ (else #f))))
+ (let ((voices (recurse-and-split music)))
+ (if voices
+ ;;
+ ;; bind voice identifiers to the voices
+ (for-each (lambda (voice-id voice)
+ (ly:parser-define! parser voice-id voice))
+ voice-ids voices)
+ (ly:music-warning music
+ (_ "ignoring parallel music without barchecks")))))
+
+parenthesize =
+#(define-music-function (parser loc arg) (ly:music?)
+ (_i "Tag @var{arg} to be parenthesized.")
- (let*
- ((notes (ly:music-property reference-note 'elements))
- (pitch (ly:music-property (car notes) 'pitch)))
+ (if (memq 'event-chord (ly:music-property arg 'types))
+ ;; arg is an EventChord -> set the parenthesize property
+ ;; on all child notes and rests
+ (for-each
+ (lambda (ev)
+ (if (or (memq 'note-event (ly:music-property ev 'types))
+ (memq 'rest-event (ly:music-property ev 'types)))
+ (set! (ly:music-property ev 'parenthesize) #t)))
+ (ly:music-property arg 'elements))
+ ;; No chord, simply set property for this expression:
+ (set! (ly:music-property arg 'parenthesize) #t))
+ arg)
- (set! (ly:music-property reference-note 'elements) '())
- (set! (ly:music-property reference-note
- 'to-relative-callback)
- (lambda (music last-pitch)
- pitch))
+partcombine =
+#(define-music-function (parser location part1 part2) (ly:music? ly:music?)
+ (_i "Take the music in @var{part1} and @var{part2} and typeset so
+that they share a staff.")
+ (make-part-combine-music parser
+ (list part1 part2) #f))
- reference-note))
+partcombineUp =
+#(define-music-function (parser location part1 part2) (ly:music? ly:music?)
+ (_i "Take the music in @var{part1} and @var{part2} and typeset so
+that they share a staff with stems directed upward.")
+ (make-part-combine-music parser
+ (list part1 part2) UP))
+partcombineDown =
+#(define-music-function (parser location part1 part2) (ly:music? ly:music?)
+ (_i "Take the music in @var{part1} and @var{part2} and typeset so
+that they share a staff with stems directed downward.")
+ (make-part-combine-music parser
+ (list part1 part2) DOWN))
+
+partcombineForce =
+#(define-music-function (location parser type once) (symbol-or-boolean? boolean?)
+ (_i "Override the part-combiner.")
+ (make-music 'EventChord
+ 'elements (list (make-music 'PartCombineForceEvent
+ 'forced-type type
+ 'once once))))
+partcombineApart = \partcombineForce #'apart ##f
+partcombineApartOnce = \partcombineForce #'apart ##t
+partcombineChords = \partcombineForce #'chords ##f
+partcombineChordsOnce = \partcombineForce #'chords ##t
+partcombineUnisono = \partcombineForce #'unisono ##f
+partcombineUnisonoOnce = \partcombineForce #'unisono ##t
+partcombineSoloI = \partcombineForce #'solo1 ##f
+partcombineSoloIOnce = \partcombineForce #'solo1 ##t
+partcombineSoloII = \partcombineForce #'solo2 ##f
+partcombineSoloIIOnce = \partcombineForce #'solo2 ##t
+partcombineAutomatic = \partcombineForce ##f ##f
+partcombineAutomaticOnce = \partcombineForce ##f ##t
+
+partial =
+#(define-music-function (parser location dur) (ly:duration?)
+ (_i "Make a partial measure.")
+
+ ;; We use `descend-to-context' here instead of `context-spec-music' to
+ ;; ensure \partial still works if the Timing_translator is moved
+ (descend-to-context
+ (context-spec-music (make-music 'PartialSet
+ 'origin location
+ 'duration dur)
+ 'Timing)
+ 'Score))
+pitchedTrill =
+#(define-music-function
+ (parser location main-note secondary-note)
+ (ly:music? ly:music?)
+ (_i "Print a trill with @var{main-note} as the main note of the trill and
+print @var{secondary-note} as a stemless note head in parentheses.")
+ (let* ((get-notes (lambda (ev-chord)
+ (extract-named-music ev-chord 'NoteEvent)))
+ (sec-note-events (get-notes secondary-note))
+ (trill-events (extract-named-music main-note 'TrillSpanEvent)))
+ (if (pair? sec-note-events)
+ (begin
+ (let* ((trill-pitch (ly:music-property (car sec-note-events) 'pitch))
+ (forced (ly:music-property (car sec-note-events) 'force-accidental)))
+
+ (if (ly:pitch? trill-pitch)
+ (for-each (lambda (m)
+ (ly:music-set-property! m 'pitch trill-pitch)) trill-events)
+ (begin
+ (ly:input-warning location (_ "Second argument of \\pitchedTrill should be single note: "))
+ (display sec-note-events)))
+
+ (if (eq? forced #t)
+ (for-each (lambda (m)
+ (ly:music-set-property! m 'force-accidental forced))
+ trill-events)))))
+ main-note))
+
+pushToTag =
+#(define-music-function (parser location tag more music)
+ (symbol? ly:music? ly:music?)
+ (_i "Add @var{more} to the front of @code{elements} of all music
+expressions in @var{music} that are tagged with @var{tag}.")
+ (music-map (lambda (m)
+ (if (memq tag (ly:music-property m 'tags))
+ (set! (ly:music-property m 'elements)
+ (cons more (ly:music-property m 'elements))))
+ m)
+ music))
+
+quoteDuring =
+#(define-music-function (parser location what main-music) (string? ly:music?)
+ (_i "Indicate a section of music to be quoted. @var{what} indicates the name
+of the quoted voice, as specified in an @code{\\addQuote} command.
+@var{main-music} is used to indicate the length of music to be quoted;
+usually contains spacers or multi-measure rests.")
+ (make-music 'QuoteMusic
+ 'element main-music
+ 'quoted-music-name what))
+
+relative =
+#(define-music-function (parser location pitch music)
+ ((ly:pitch?) ly:music?)
+ (_i "Make @var{music} relative to @var{pitch}. If @var{pitch} is
+omitted, the first note in @var{music} is given in absolute pitch.")
+ ;; When \relative has no clear decision (can only happen with
+ ;; scales with an even number of steps), it goes down (see
+ ;; pitch.cc). The following formula puts out f for both the normal
+ ;; 7-step scale as well as for a "shortened" scale missing the
+ ;; final b. In either case, a first note of c will end up as c,
+ ;; namely pitch (-1, 0, 0).
+ (ly:make-music-relative! music
+ (or pitch
+ (ly:make-pitch
+ -1
+ (quotient
+ ;; size of current scale:
+ (ly:pitch-steps (ly:make-pitch 1 0))
+ 2))))
+ (make-music 'RelativeOctaveMusic
+ 'element music))
+
+removeWithTag =
+#(define-music-function (parser location tag music)
+ (symbol-list-or-symbol? ly:music?)
+ (_i "Remove elements of @var{music} that are tagged with one of the
+tags in @var{tag}. @var{tag} may be either a single symbol or a list
+of symbols.")
+ (music-filter
+ (if (symbol? tag)
+ (lambda (m)
+ (not (memq tag (ly:music-property m 'tags))))
+ (lambda (m)
+ (let ((music-tags (ly:music-property m 'tags)))
+ (or (null? music-tags)
+ (not (any (lambda (t) (memq t music-tags)) tag))))))
+ music))
+
+resetRelativeOctave =
+#(define-music-function (parser location pitch) (ly:pitch?)
+ (_i "Set the octave inside a \\relative section.")
+
+ (make-music 'SequentialMusic
+ 'to-relative-callback
+ (lambda (music last-pitch) pitch)))
+
+retrograde =
+#(define-music-function (parser location music)
+ (ly:music?)
+ (_i "Return @var{music} in reverse order.")
+ (retrograde-music music))
+
+revertTimeSignatureSettings =
+#(define-music-function
+ (parser location time-signature)
+ (pair?)
+
+ (_i "Revert @code{timeSignatureSettings}
+for time signatures of @var{time-signature}.")
+ (revert-time-signature-setting time-signature))
+
+rightHandFinger =
+#(define-event-function (parser location finger) (number-or-markup?)
+ (_i "Apply @var{finger} as a fingering indication.")
+
+ (make-music
+ 'StrokeFingerEvent
+ (if (number? finger) 'digit 'text)
+ finger))
+
+scaleDurations =
+#(define-music-function (parser location fraction music)
+ (fraction? ly:music?)
+ (_i "Multiply the duration of events in @var{music} by @var{fraction}.")
+ (ly:music-compress music
+ (ly:make-moment (car fraction) (cdr fraction))))
+
+settingsFrom =
+#(define-scheme-function (parser location ctx music)
+ ((symbol?) ly:music?)
+ (_i "Take the layout instruction events from @var{music}, optionally
+restricted to those applying to context type @var{ctx}, and return
+a context modification duplicating their effect.")
+ (let ((mods (ly:make-context-mod)))
+ (define (musicop m)
+ (if (music-is-of-type? m 'layout-instruction-event)
+ (ly:add-context-mod
+ mods
+ (case (ly:music-property m 'name)
+ ((PropertySet)
+ (list 'assign
+ (ly:music-property m 'symbol)
+ (ly:music-property m 'value)))
+ ((PropertyUnset)
+ (list 'unset
+ (ly:music-property m 'symbol)))
+ ((OverrideProperty)
+ (cons* 'push
+ (ly:music-property m 'symbol)
+ (ly:music-property m 'grob-value)
+ (cond
+ ((ly:music-property m 'grob-property #f) => list)
+ (else
+ (ly:music-property m 'grob-property-path)))))
+ ((RevertProperty)
+ (cons* 'pop
+ (ly:music-property m 'symbol)
+ (cond
+ ((ly:music-property m 'grob-property #f) => list)
+ (else
+ (ly:music-property m 'grob-property-path)))))))
+ (case (ly:music-property m 'name)
+ ((ApplyContext)
+ (ly:add-context-mod mods
+ (list 'apply
+ (ly:music-property m 'procedure))))
+ ((ContextSpeccedMusic)
+ (if (or (not ctx)
+ (eq? ctx (ly:music-property m 'context-type)))
+ (musicop (ly:music-property m 'element))))
+ (else
+ (let ((callback (ly:music-property m 'elements-callback)))
+ (if (procedure? callback)
+ (for-each musicop (callback m))))))))
+ (musicop music)
+ mods))
+
+shape =
+#(define-music-function (parser location offsets item)
+ (list? symbol-list-or-music?)
+ (_i "Offset control-points of @var{item} by @var{offsets}. The
+argument is a list of number pairs or list of such lists. Each
+element of a pair represents an offset to one of the coordinates of a
+control-point. If @var{item} is a string, the result is
+@code{\\once\\override} for the specified grob type. If @var{item} is
+a music expression, the result is the same music expression with an
+appropriate tweak applied.")
+ (define (shape-curve grob)
+ (let* ((orig (ly:grob-original grob))
+ (siblings (if (ly:spanner? grob)
+ (ly:spanner-broken-into orig) '()))
+ (total-found (length siblings))
+ (function (assoc-get 'control-points
+ (reverse (ly:grob-basic-properties grob))))
+ (coords (function grob)))
+
+ (define (offset-control-points offsets)
+ (if (null? offsets)
+ coords
+ (map
+ (lambda (x y) (coord-translate x y))
+ coords offsets)))
+
+ (define (helper sibs offs)
+ (if (pair? offs)
+ (if (eq? (car sibs) grob)
+ (offset-control-points (car offs))
+ (helper (cdr sibs) (cdr offs)))
+ coords))
+
+ ;; we work with lists of lists
+ (if (or (null? offsets)
+ (not (list? (car offsets))))
+ (set! offsets (list offsets)))
+
+ (if (>= total-found 2)
+ (helper siblings offsets)
+ (offset-control-points (car offsets)))))
+ #{ \once \tweak control-points #shape-curve #item #})
shiftDurations =
-#(define-music-function (parser location dur dots arg) (integer? integer? ly:music?)
- (_i "")
-
+#(define-music-function (parser location dur dots arg)
+ (integer? integer? ly:music?)
+ (_i "Change the duration of @var{arg} by adding @var{dur} to the
+@code{durlog} of @var{arg} and @var{dots} to the @code{dots} of @var{arg}.")
+
(music-map
(lambda (x)
(shift-one-duration-log x dur dots)) arg))
+single =
+#(define-music-function (parser location overrides music)
+ (ly:music? ly:music?)
+ (_i "Convert @var{overrides} to tweaks and apply them to @var{music}.
+This does not convert @code{\\revert}, @code{\\set} or @code{\\unset}.")
+ (set! (ly:music-property music 'tweaks)
+ (fold-some-music
+ (lambda (m) (eq? (ly:music-property m 'name)
+ 'OverrideProperty))
+ (lambda (m tweaks)
+ (let ((p (cond
+ ((ly:music-property m 'grob-property #f) => list)
+ (else
+ (ly:music-property m 'grob-property-path)))))
+ (acons (cons (ly:music-property m 'symbol) ;grob name
+ (if (pair? (cdr p))
+ p ;grob property path
+ (car p))) ;grob property
+ (ly:music-property m 'grob-value)
+ tweaks)))
+ (ly:music-property music 'tweaks)
+ overrides))
+ music)
+
+skip =
+#(define-music-function (parser location dur) (ly:duration?)
+ (_i "Skip forward by @var{dur}.")
+ (make-music 'SkipMusic
+ 'duration dur))
+
+
+slashedGrace =
+#(def-grace-function startSlashedGraceMusic stopSlashedGraceMusic
+ (_i "Create slashed graces (slashes through stems, but no slur) from
+the following music expression"))
+
spacingTweaks =
#(define-music-function (parser location parameters) (list?)
(_i "Set the system stretch, by reading the 'system-stretch property of
the `parameters' assoc list.")
#{
- \overrideProperty #"Score.NonMusicalPaperColumn"
- #'line-break-system-details
- #$(list (cons 'alignment-extra-space (cdr (assoc 'system-stretch parameters)))
- (cons 'system-Y-extent (cdr (assoc 'system-Y-extent parameters))))
+ \overrideProperty Score.NonMusicalPaperColumn.line-break-system-details
+ #(list (cons 'alignment-extra-space (cdr (assoc 'system-stretch parameters)))
+ (cons 'system-Y-extent (cdr (assoc 'system-Y-extent parameters))))
#})
-%% Parser used to read page-layout file, and then retreive score tweaks.
-#(define page-layout-parser #f)
+styledNoteHeads =
+#(define-music-function (parser location style heads music)
+ (symbol? symbol-list-or-symbol? ly:music?)
+ (_i "Set @var{heads} in @var{music} to @var{style}.")
+ (style-note-heads heads style music))
-includePageLayoutFile =
-#(define-music-function (parser location) ()
- (_i "If page breaks and tweak dump is not asked, and the file
-<basename>-page-layout.ly exists, include it.")
- (if (not (ly:get-option 'dump-tweaks))
- (let ((tweak-filename (format #f "~a-page-layout.ly"
- (ly:parser-output-name parser))))
- (if (access? tweak-filename R_OK)
- (begin
- (ly:message "Including tweak file ~a" tweak-filename)
- (set! page-layout-parser (ly:parser-clone parser))
- (ly:parser-parse-string page-layout-parser
- (format #f "\\include \"~a\""
- tweak-filename))))))
- (make-music 'SequentialMusic 'void #t))
+tag =
+#(define-music-function (parser location tag music) (symbol-list-or-symbol? ly:music?)
+ (_i "Tag the following @var{music} with @var{tag} and return the
+result, by adding the single symbol or symbol list @var{tag} to the
+@code{tags} property of @var{music}.")
+ (set!
+ (ly:music-property music 'tags)
+ ((if (symbol? tag) cons append)
+ tag
+ (ly:music-property music 'tags)))
+ music)
-rightHandFinger =
-#(define-music-function (parser location finger) (number-or-string?)
- (_i "Define a StrokeFingerEvent")
-
- (apply make-music
- (append
- (list
- 'StrokeFingerEvent
- 'origin location)
- (if (string? finger)
- (list 'text finger)
- (list 'digit finger)))))
-
-scoreTweak =
-#(define-music-function (parser location name) (string?)
- (_i "Include the score tweak, if exists.")
- (if (and page-layout-parser (not (ly:get-option 'dump-tweaks)))
- (let ((tweak-music (ly:parser-lookup page-layout-parser
- (string->symbol name))))
- (if (ly:music? tweak-music)
- tweak-music
- (make-music 'SequentialMusic)))
- (make-music 'SequentialMusic)))
+temporary =
+#(define-music-function (parser location music)
+ (ly:music?)
+ (_i "Make any @code{\\override} in @var{music} replace an existing
+grob property value only temporarily, restoring the old value when a
+corresponding @code{\\revert} is executed. This is achieved by
+clearing the @samp{pop-first} property normally set on
+@code{\\override}s.
+
+An @code{\\override}/@/@code{\\revert} sequence created by using
+@code{\\temporary} and @code{\\undo} on the same music containing
+overrides will cancel out perfectly or cause a@tie{}warning.
+
+Non-property-related music is ignored, warnings are generated for any
+property-changing music that isn't an @code{\\override}.")
+ (define warned #f)
+ (for-some-music
+ (lambda (m)
+ (and (or (music-is-of-type? m 'layout-instruction-event)
+ (music-is-of-type? m 'context-specification)
+ (music-is-of-type? m 'apply-context)
+ (music-is-of-type? m 'time-signature-music))
+ (case (ly:music-property m 'name)
+ ((OverrideProperty)
+ (if (ly:music-property m 'pop-first #f)
+ (set! (ly:music-property m 'pop-first) '()))
+ (if (ly:music-property m 'once #f)
+ (set! (ly:music-property m 'once) '()))
+ #t)
+ ((ContextSpeccedMusic)
+ #f)
+ (else
+ (if (not warned)
+ (begin
+ (ly:input-warning location (_ "Cannot make ~a revertible")
+ (ly:music-property m 'name))
+ (set! warned #t)))
+ #t))))
+ music)
+ music)
+
+time =
+#(define-music-function (parser location beat-structure fraction)
+ ((number-list? '()) fraction?)
+ (_i "Set @var{fraction} as time signature, with optional
+number list @var{beat-structure} before it.")
+ (make-music 'TimeSignatureMusic
+ 'numerator (car fraction)
+ 'denominator (cdr fraction)
+ 'beat-structure beat-structure))
+
+times =
+#(define-music-function (parser location fraction music)
+ (fraction? ly:music?)
+ (_i "Scale @var{music} in time by @var{fraction}.")
+ (make-music 'TimeScaledMusic
+ 'element (ly:music-compress music (ly:make-moment (car fraction) (cdr fraction)))
+ 'numerator (car fraction)
+ 'denominator (cdr fraction)))
+
+transpose =
+#(define-music-function
+ (parser location from to music)
+ (ly:pitch? ly:pitch? ly:music?)
+
+ (_i "Transpose @var{music} from pitch @var{from} to pitch @var{to}.")
+ (make-music 'TransposedMusic
+ 'element (ly:music-transpose music (ly:pitch-diff to from))))
transposedCueDuring =
#(define-music-function
- (parser location what dir pitch-note main-music)
- (string? ly:dir? ly:music? ly:music?)
+ (parser location what dir pitch main-music)
+ (string? ly:dir? ly:pitch? ly:music?)
- (_i "Insert notes from the part @var{what} into a voice called @code{cue},
-using the transposition defined by @var{pitch-note}. This happens
-simultaneously with @var{main-music}, which is usually a rest. The
+ (_i "Insert notes from the part @var{what} into a voice called @code{cue},
+using the transposition defined by @var{pitch}. This happens
+simultaneously with @var{main-music}, which is usually a rest. The
argument @var{dir} determines whether the cue notes should be notated
as a first or second voice.")
- (make-music 'QuoteMusic
- 'element main-music
- 'quoted-context-type 'Voice
- 'quoted-context-id "cue"
- 'quoted-music-name what
- 'quoted-voice-direction dir
- 'quoted-transposition (pitch-of-note pitch-note)
- 'origin location))
-
-
+ (make-music 'QuoteMusic
+ 'element main-music
+ 'quoted-context-type 'CueVoice
+ 'quoted-context-id "cue"
+ 'quoted-music-name what
+ 'quoted-voice-direction dir
+ ;; following is inverse of instrumentTransposition for
+ ;; historical reasons
+ 'quoted-transposition pitch))
transposition =
-#(define-music-function (parser location pitch-note) (ly:music?)
+#(define-music-function (parser location pitch) (ly:pitch?)
(_i "Set instrument transposition")
(context-spec-music
- (make-property-set 'instrumentTransposition
- (ly:pitch-negate (pitch-of-note pitch-note)))
- 'Staff))
-
-tweak = #(define-music-function (parser location sym val arg)
- (symbol? scheme? ly:music?)
-
- (_i "Add @code{sym . val} to the @code{tweaks} property of @var{arg}.")
-
- (set!
- (ly:music-property arg 'tweaks)
- (acons sym val
- (ly:music-property arg 'tweaks)))
- arg)
-
-tag = #(define-music-function (parser location tag arg)
- (symbol? ly:music?)
-
- (_i "Add @var{tag} to the @code{tags} property of @var{arg}.")
-
- (set!
- (ly:music-property arg 'tags)
- (cons tag
- (ly:music-property arg 'tags)))
- arg)
-
+ (make-property-set 'instrumentTransposition pitch)
+ 'Staff))
+
+tuplet =
+#(define-music-function (parser location ratio tuplet-span music)
+ (fraction? (ly:duration? '()) ly:music?)
+ (_i "Scale the given @var{music} to tuplets. @var{ratio} is a
+fraction that specifies how many notes are played in place of the
+nominal value: it will be @samp{3/2} for triplets, namely three notes
+being played in place of two. If the optional duration
+@var{tuplet-span} is specified, it is used instead of
+@code{tupletSpannerDuration} for grouping the tuplets.
+For example,
+@example
+\\tuplet 3/2 4 @{ c8 c c c c c @}
+@end example
+will result in two groups of three tuplets, each group lasting for a
+quarter note.")
+ (make-music 'TimeScaledMusic
+ 'element (ly:music-compress
+ music
+ (ly:make-moment (cdr ratio) (car ratio)))
+ 'numerator (cdr ratio)
+ 'denominator (car ratio)
+ 'duration tuplet-span))
+
+tupletSpan =
+#(define-music-function (parser location tuplet-span)
+ ((ly:duration?))
+ (_i "Set @code{tupletSpannerDuration}, the length into which
+@code{\\tuplet} without an explicit @samp{tuplet-span} argument of its
+own will group its tuplets, to the duration @var{tuplet-span}. To
+revert to the default of not subdividing the contents of a @code{\\tuplet}
+command without explicit @samp{tuplet-span}, use
+@example
+\\tupletSpan \\default
+@end example
+")
+ (if tuplet-span
+ #{ \set tupletSpannerDuration = #(ly:duration-length tuplet-span) #}
+ #{ \unset tupletSpannerDuration #}))
+
+tweak =
+#(define-music-function (parser location prop value item)
+ (symbol-list-or-symbol? scheme? symbol-list-or-music?)
+ (_i "Add a tweak to the following @var{item}, usually music.
+Layout objects created by @var{item} get their property @var{prop}
+set to @var{value}. If @var{prop} has the form @samp{Grob.property}, like with
+@example
+\\tweak Accidental.color #red cis'
+@end example
+an indirectly created grob (@samp{Accidental} is caused by
+@samp{NoteHead}) can be tweaked; otherwise only directly created grobs
+are affected.
+
+As a special case, @var{item} may be a symbol list specifying a grob
+path, in which case @code{\\override} is called on it instead of
+creating tweaked music. This is mainly useful when using
+@code{\\tweak} as as a component for building other functions.
+
+If this use case would call for @code{\\once \\override} rather than a
+plain @code{\\override}, writing @code{\\once \\tweak @dots{}} can be
+convenient.
+
+@var{prop} can contain additional elements in which case a nested
+property (inside of an alist) is tweaked.")
+ (if (ly:music? item)
+ (let ((p (check-grob-path prop parser location
+ #:start 1
+ #:default #t
+ #:min 2)))
+ (if p
+ (set! (ly:music-property item 'tweaks)
+ (acons (cond ((pair? (cddr p)) p)
+ ((symbol? (car p))
+ (cons (car p) (cadr p)))
+ (else (cadr p)))
+ value
+ (ly:music-property item 'tweaks))))
+ item)
+ ;; We could just throw this at \override and let it sort this
+ ;; out on its own, but this way we should get better error
+ ;; diagnostics.
+ (let ((p (check-grob-path
+ (append item (if (symbol? prop) (list prop) prop))
+ parser location
+ #:default 'Bottom #:min 3)))
+ (if p
+ #{ \override #p = #value #}
+ (make-music 'Music)))))
+
+undo =
+#(define-music-function (parser location music)
+ (ly:music?)
+ (_i "Convert @code{\\override} and @code{\\set} in @var{music} to
+@code{\\revert} and @code{\\unset}, respectively. Any reverts and
+unsets already in @var{music} cause a warning. Non-property-related music is ignored.")
+ (define warned #f)
+ (let loop
+ ((music music))
+ (let
+ ((lst
+ (fold-some-music
+ (lambda (m) (or (music-is-of-type? m 'layout-instruction-event)
+ (music-is-of-type? m 'context-specification)
+ (music-is-of-type? m 'apply-context)
+ (music-is-of-type? m 'time-signature-music)))
+ (lambda (m overrides)
+ (case (ly:music-property m 'name)
+ ((OverrideProperty)
+ (cons
+ (make-music 'RevertProperty
+ 'symbol (ly:music-property m 'symbol)
+ 'grob-property-path
+ (cond
+ ((ly:music-property m 'grob-property #f) => list)
+ (else
+ (ly:music-property m 'grob-property-path))))
+ overrides))
+ ((PropertySet)
+ (cons
+ (make-music 'PropertyUnset
+ 'symbol (ly:music-property m 'symbol))
+ overrides))
+ ((ContextSpeccedMusic)
+ (cons
+ (make-music 'ContextSpeccedMusic
+ 'element (loop (ly:music-property m 'element))
+ 'context-type (ly:music-property m 'context-type))
+ overrides))
+ (else
+ (if (not warned)
+ (begin
+ (ly:input-warning location (_ "Cannot revert ~a")
+ (ly:music-property m 'name))
+ (set! warned #t)))
+ overrides)))
+ '()
+ music)))
+ (cond
+ ((null? lst) (make-music 'Music))
+ ((null? (cdr lst)) (car lst))
+ (else (make-sequential-music lst))))))
unfoldRepeats =
#(define-music-function (parser location music) (ly:music?)
- (unfold-repeats music))
-
+ (_i "Force any @code{\\repeat volta}, @code{\\repeat tremolo} or
+@code{\\repeat percent} commands in @var{music} to be interpreted
+as @code{\\repeat unfold}.")
+ (unfold-repeats music))
+void =
+#(define-void-function (parser location arg) (scheme?)
+ (_i "Accept a scheme argument, return a void expression.
+Use this if you want to have a scheme expression evaluated
+because of its side-effects, but its value ignored."))
withMusicProperty =
-#(define-music-function (parser location sym val music) (symbol? scheme? ly:music?)
+#(define-music-function (parser location sym val music)
+ (symbol? scheme? ly:music?)
(_i "Set @var{sym} to @var{val} in @var{music}.")
(set! (ly:music-property music sym) val)
music)
-
-
projects / lilypond.git / blobdiff