1 ;;;; music-functions.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
6 ;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 ;; (use-modules (ice-9 optargs))
10 ;;; ly:music-property with setter
11 ;;; (ly:music-property my-music 'elements)
12 ;;; ==> the 'elements property
13 ;;; (set! (ly:music-property my-music 'elements) value)
14 ;;; ==> set the 'elements property and return it
15 (define-public ly:music-property
16 (make-procedure-with-setter ly:music-property
17 ly:music-set-property!))
19 (define-public ly:grob-property
20 (make-procedure-with-setter ly:grob-property
21 ly:grob-set-property!))
23 (define-public (music-map function music)
24 "Apply @var{function} to @var{music} and all of the music it contains. "
25 (let ((es (ly:music-property music 'elements))
26 (e (ly:music-property music 'element)))
27 (set! (ly:music-property music 'elements)
28 (map (lambda (y) (music-map function y)) es))
30 (set! (ly:music-property music 'element)
31 (music-map function e)))
34 (define-public (music-filter pred? music)
35 "Filter out music expressions that do not satisfy PRED."
37 (define (inner-music-filter pred? music)
39 (let* ((es (ly:music-property music 'elements))
40 (e (ly:music-property music 'element))
41 (as (ly:music-property music 'articulations))
42 (filtered-as (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) as)))
43 (filtered-e (if (ly:music? e)
44 (inner-music-filter pred? e)
46 (filtered-es (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) es))))
47 (set! (ly:music-property music 'element) filtered-e)
48 (set! (ly:music-property music 'elements) filtered-es)
49 (set! (ly:music-property music 'articulations) filtered-as)
50 ;; if filtering emptied the expression, we remove it completely.
51 (if (or (not (pred? music))
52 (and (eq? filtered-es '()) (not (ly:music? e))
53 (or (not (eq? es '()))
58 (set! music (inner-music-filter pred? music))
61 (make-music 'Music))) ;must return music.
63 (define-public (display-music music)
64 "Display music, not done with music-map for clarity of presentation."
67 (let ((es (ly:music-property music 'elements))
68 (e (ly:music-property music 'element)))
69 (display (ly:music-mutable-properties music))
71 (begin (display "\nElements: {\n")
72 (map display-music es)
81 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
83 (define (shift-one-duration-log music shift dot)
84 " add SHIFT to ly:duration-log and optionally
85 a dot to any note encountered. This scales the music up by a factor
86 2^shift * (2 - (1/2)^dot)"
87 (let ((d (ly:music-property music 'duration)))
89 (let* ((cp (ly:duration-factor d))
90 (nd (ly:make-duration (+ shift (ly:duration-log d))
91 (+ dot (ly:duration-dot-count d))
94 (set! (ly:music-property music 'duration) nd)))
99 (define-public (shift-duration-log music shift dot)
100 (music-map (lambda (x) (shift-one-duration-log x shift dot))
103 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
106 (define-public (note-to-cluster music)
107 "Replace NoteEvents by ClusterNoteEvents."
108 (if (eq? (ly:music-property music 'name) 'NoteEvent)
109 (make-music 'ClusterNoteEvent
110 'pitch (ly:music-property music 'pitch)
111 'duration (ly:music-property music 'duration))
114 (define-public (notes-to-clusters music)
115 (music-map note-to-cluster music))
117 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
120 (define-public (unfold-repeats music)
122 This function replaces all repeats with unfold repeats. "
124 (let ((es (ly:music-property music 'elements))
125 (e (ly:music-property music 'element))
126 (n (ly:music-name music)))
127 (if (equal? n "Repeated_music")
130 (if (equal? (ly:music-property music 'iterator-ctor)
131 Chord_tremolo_iterator::constructor)
132 (let* ((seq-arg? (memq 'sequential-music
133 (ly:music-property e 'types)))
134 (count (ly:music-property music 'repeat-count))
135 (dot-shift (if (= 0 (remainder count 3))
139 (set! count (* 2 (quotient count 3))))
141 (shift-duration-log music (+ (if seq-arg? 1 0)
142 (ly:intlog2 count)) dot-shift)
145 (ly:music-compress e (ly:make-moment (length (ly:music-property e 'elements)) 1)))))
147 (set! (ly:music-property music 'length)
148 Repeated_music::unfolded_music_length)
149 (set! (ly:music-property music 'start-moment-function)
150 Repeated_music::first_start)
151 (set! (ly:music-property music 'iterator-ctor)
152 Unfolded_repeat_iterator::constructor)))
155 (set! (ly:music-property music 'elements)
156 (map unfold-repeats es)))
158 (set! (ly:music-property music 'element)
162 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
163 ;; property setting music objs.
165 (define-public (make-grob-property-set grob gprop val)
166 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
167 i.e. this is not an override"
168 (make-music 'OverrideProperty
174 (define-public (make-grob-property-override grob gprop val)
175 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
176 i.e. this is not an override"
177 (make-music 'OverrideProperty
182 (define-public (make-grob-property-revert grob gprop)
183 "Revert the grob property GPROP for GROB."
184 (make-music 'OverrideProperty
186 'grob-property gprop))
188 (define direction-polyphonic-grobs
189 '(Stem Tie Rest Slur Script TextScript Dots DotColumn Fingering))
191 (define-public (make-voice-props-set n)
192 (make-sequential-music
194 (map (lambda (x) (make-grob-property-set x 'direction
196 direction-polyphonic-grobs)
198 (make-grob-property-set 'NoteColumn 'horizontal-shift (quotient n 2))
199 (make-grob-property-set 'MultiMeasureRest 'staff-position (if (odd? n) -4 4))))))
201 (define-public (make-voice-props-revert)
202 (make-sequential-music
204 (map (lambda (x) (make-grob-property-revert x 'direction))
205 direction-polyphonic-grobs)
206 (list (make-grob-property-revert 'NoteColumn 'horizontal-shift))
207 (list (make-grob-property-revert 'MultiMeasureRest 'staff-position)))))
210 (define*-public (context-spec-music m context #:optional id)
211 "Add \\context CONTEXT = ID to M. "
212 (let ((cm (make-music 'ContextSpeccedMusic
214 'context-type context)))
216 (set! (ly:music-property cm 'context-id) id))
219 (define-public (descend-to-context m context)
220 "Like context-spec-music, but only descending. "
221 (let ((cm (context-spec-music m context)))
222 (ly:music-set-property! cm 'descend-only #t)
225 (define-public (make-non-relative-music mus)
226 (make-music 'UnrelativableMusic
229 (define-public (make-apply-context func)
230 (make-music 'ApplyContext
233 (define-public (make-sequential-music elts)
234 (make-music 'SequentialMusic
237 (define-public (make-simultaneous-music elts)
238 (make-music 'SimultaneousMusic
241 (define-public (make-event-chord elts)
242 (make-music 'EventChord
245 (define-public (make-skip-music dur)
246 (make-music 'SkipMusic
249 (define-public (make-grace-music music)
250 (make-music 'GraceMusic
256 (define-public (make-multi-measure-rest duration location)
257 (make-music 'MultiMeasureRestMusicGroup
259 'elements (list (make-music 'BarCheck
261 (make-event-chord (list (make-music 'MultiMeasureRestEvent
263 'duration duration)))
264 (make-music 'BarCheck
267 (define-public (glue-mm-rest-texts music)
268 "Check if we have R1*4-\\markup { .. }, and if applicable convert to
269 a property set for MultiMeasureRestNumber."
270 (define (script-to-mmrest-text script-music)
271 "Extract 'direction and 'text from SCRIPT-MUSIC, and transform into property sets."
272 (let ((dir (ly:music-property script-music 'direction))
273 (p (make-music 'MultiMeasureTextEvent
274 'text (ly:music-property script-music 'text))))
276 (set! (ly:music-property p 'direction) dir))
278 (if (eq? (ly:music-property music 'name) 'MultiMeasureRestMusicGroup)
279 (let* ((text? (lambda (x) (memq 'script-event (ly:music-property x 'types))))
280 (es (ly:music-property music 'elements))
281 (texts (map script-to-mmrest-text (filter text? es)))
282 (others (remove text? es)))
284 (set! (ly:music-property music 'elements)
285 (cons (make-event-chord texts) others)))))
289 (define-public (make-property-set sym val)
290 (make-music 'PropertySet
294 (define-public (make-ottava-set octavation)
295 (let ((m (make-music 'ApplyContext)))
296 (define (ottava-modify context)
297 "Either reset middleCPosition to the stored original, or remember
298 old middleCPosition, add OCTAVATION to middleCPosition, and set
299 OTTAVATION to `8va', or whatever appropriate."
300 (if (number? (ly:context-property context 'middleCPosition))
302 (let ((where (ly:context-property-where-defined context 'middleCPosition))
303 (oc0 (ly:context-property context 'originalCentralCPosition)))
304 (ly:context-set-property! context 'middleCPosition oc0)
305 (ly:context-unset-property where 'originalCentralCPosition)
306 (ly:context-unset-property where 'ottavation))
307 (let* ((where (ly:context-property-where-defined context 'middleCPosition))
308 (c0 (ly:context-property context 'middleCPosition))
309 (new-c0 (+ c0 (* -7 octavation)))
310 (string (cdr (assoc octavation '((2 . "15ma")
314 (-2 . "15ma bassa"))))))
315 (ly:context-set-property! context 'middleCPosition new-c0)
316 (ly:context-set-property! context 'originalCentralCPosition c0)
317 (ly:context-set-property! context 'ottavation string)))))
318 (set! (ly:music-property m 'procedure) ottava-modify)
319 (context-spec-music m 'Staff)))
321 (define-public (set-octavation ottavation)
322 (ly:export (make-ottava-set ottavation)))
324 (define-public (make-time-signature-set num den . rest)
325 "Set properties for time signature NUM/DEN. Rest can contain a list
327 (let* ((set1 (make-property-set 'timeSignatureFraction (cons num den)))
328 (beat (ly:make-moment 1 den))
329 (len (ly:make-moment num den))
330 (set2 (make-property-set 'beatLength beat))
331 (set3 (make-property-set 'measureLength len))
332 (set4 (make-property-set 'beatGrouping (if (pair? rest)
335 (basic (list set1 set2 set3 set4)))
337 (context-spec-music (make-sequential-music basic) 'Timing) 'Score)))
339 (define-public (make-mark-set label)
340 "Make the music for the \\mark command."
341 (let* ((set (if (integer? label)
342 (context-spec-music (make-property-set 'rehearsalMark label)
345 (ev (make-music 'MarkEvent))
346 (ch (make-event-chord (list ev))))
348 (make-sequential-music (list set ch))
350 (set! (ly:music-property ev 'label) label)
353 (define-public (set-time-signature num den . rest)
354 (ly:export (apply make-time-signature-set `(,num ,den . ,rest))))
356 (define-public (make-penalty-music pen page-pen)
357 (make-music 'BreakEvent
359 'page-penalty page-pen))
361 (define-public (make-articulation name)
362 (make-music 'ArticulationEvent
363 'articulation-type name))
365 (define-public (make-lyric-event string duration)
366 (make-music 'LyricEvent
370 (define-public (make-span-event type spandir)
372 'span-direction spandir))
374 (define-public (set-mus-properties! m alist)
375 "Set all of ALIST as properties of M."
378 (set! (ly:music-property m (caar alist)) (cdar alist))
379 (set-mus-properties! m (cdr alist)))))
381 (define-public (music-separator? m)
383 (let ((ts (ly:music-property m 'types)))
384 (memq 'separator ts)))
387 ;;; splitting chords into voices.
388 (define (voicify-list lst number)
389 "Make a list of Musics.
391 voicify-list :: [ [Music ] ] -> number -> [Music]
392 LST is a list music-lists.
394 NUMBER is 0-base, i.e. Voice=1 (upstems) has number 0.
398 (cons (context-spec-music
399 (make-sequential-music
400 (list (make-voice-props-set number)
401 (make-simultaneous-music (car lst))))
402 'Voice (number->string (1+ number)))
403 (voicify-list (cdr lst) (1+ number)))))
405 (define (voicify-chord ch)
406 "Split the parts of a chord into different Voices using separator"
407 (let ((es (ly:music-property ch 'elements)))
408 (set! (ly:music-property ch 'elements)
409 (voicify-list (split-list es music-separator?) 0))
412 (define-public (voicify-music m)
413 "Recursively split chords that are separated with \\ "
414 (if (not (ly:music? m))
416 (error "not music!")))
417 (let ((es (ly:music-property m 'elements))
418 (e (ly:music-property m 'element)))
420 (set! (ly:music-property m 'elements) (map voicify-music es)))
422 (set! (ly:music-property m 'element) (voicify-music e)))
423 (if (and (equal? (ly:music-name m) "Simultaneous_music")
424 (reduce (lambda (x y ) (or x y)) #f (map music-separator? es)))
425 (set! m (context-spec-music (voicify-chord m) 'Staff)))
428 (define-public (empty-music)
429 (ly:export (make-music 'Music)))
432 ; Make a function that checks score element for being of a specific type.
433 (define-public (make-type-checker symbol)
436 ;;(eq? #t (ly:grob-property elt symbol))
437 (not (eq? #f (memq symbol (ly:grob-property elt 'interfaces))))))
439 (define-public ((outputproperty-compatibility func sym val) grob g-context ao-context)
441 (set! (ly:grob-property grob sym) val)))
444 (define-public ((set-output-property grob-name symbol val) grob grob-c context)
447 \\applyoutput #(set-output-property 'Clef 'extra-offset '(0 . 1))
450 (let ((meta (ly:grob-property grob 'meta)))
451 (if (equal? (cdr (assoc 'name meta)) grob-name)
452 (set! (ly:grob-property grob symbol) val))))
456 (define-public (smart-bar-check n)
457 "Make a bar check that checks for a specific bar number.
459 (let ((m (make-music 'ApplyContext)))
461 (let* ((bn (ly:context-property tr 'currentBarNumber)))
465 (format "Bar check failed, we should have reached ~a, instead at ~a\n"
467 (set! (ly:music-property m 'procedure) checker)
470 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
471 ;; warn for bare chords at start.
473 (define (has-request-chord elts)
474 (reduce (lambda (x y) (or x y)) #f
476 (equal? (ly:music-name x) "Request_chord"))
479 (define (ly:music-message music msg)
480 (let ((ip (ly:music-property music 'origin)))
481 (if (ly:input-location? ip)
482 (ly:input-message ip msg)
485 (define (check-start-chords music)
486 "Check music expression for a Simultaneous_music containing notes\n(ie. Request_chords),
487 without context specification. Called from parser."
488 (let ((es (ly:music-property music 'elements))
489 (e (ly:music-property music 'element))
490 (name (ly:music-name music)))
491 (cond ((equal? name "Context_specced_music") #t)
492 ((equal? name "Simultaneous_music")
493 (if (has-request-chord es)
494 (ly:music-message music "Starting score with a chord.\nPlease insert an explicit \\context before chord")
495 (map check-start-chords es)))
496 ((equal? name "Sequential_music")
498 (check-start-chords (car es))))
499 (else (if (ly:music? e) (check-start-chords e)))))
504 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
506 ;; setting stuff for grace context.
509 (define (vector-extend v x)
510 "Make a new vector consisting of V, with X added to the end."
511 (let* ((n (vector-length v))
512 (nv (make-vector (+ n 1) '())))
513 (vector-move-left! v 0 n nv 0)
517 (define (vector-map f v)
518 "Map F over V. This function returns nothing."
519 (do ((n (vector-length v))
522 (f (vector-ref v i))))
524 (define (vector-reverse-map f v)
525 "Map F over V, N to 0 order. This function returns nothing."
526 (do ((i (- (vector-length v) 1) (- i 1)))
528 (f (vector-ref v i))))
530 ;; TODO: make a remove-grace-property too.
531 (define-public (add-grace-property context-name grob sym val)
532 "Set SYM=VAL for GROB in CONTEXT-NAME. "
533 (define (set-prop context)
534 (let* ((where (ly:context-property-where-defined context 'graceSettings))
535 (current (ly:context-property where 'graceSettings))
536 (new-settings (append current
537 (list (list context-name grob sym val)))))
538 (ly:context-set-property! where 'graceSettings new-settings)))
539 (ly:export (context-spec-music (make-apply-context set-prop) 'Voice)))
543 (defmacro-public def-grace-function (start stop)
544 `(def-music-function (parser location music) (ly:music?)
545 (make-music 'GraceMusic
547 'element (make-music 'SequentialMusic
548 'elements (list (ly:music-deep-copy ,start)
550 (ly:music-deep-copy ,stop))))))
552 (defmacro-public def-music-function (args signature . body)
553 "Helper macro for `ly:make-music-function'.
555 (def-music-function (parser location arg1 arg2 ...) (arg1-type? arg2-type? ...)
558 `(ly:make-music-function (list ,@signature)
563 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
565 (define-public (cue-substitute quote-music)
566 "Must happen after quote-substitute."
568 (if (vector? (ly:music-property quote-music 'quoted-events))
569 (let* ((dir (ly:music-property quote-music 'quoted-voice-direction))
570 (main-voice (if (eq? 1 dir) 1 0))
571 (cue-voice (if (eq? 1 dir) 0 1))
572 (main-music (ly:music-property quote-music 'element))
573 (return-value quote-music))
575 (if (or (eq? 1 dir) (eq? -1 dir))
577 ;; if we have stem dirs, change both quoted and main music
578 ;; to have opposite stems.
582 ;; cannot context-spec Quote-music, since context
583 ;; for the quotes is determined in the iterator.
584 (make-sequential-music
586 (context-spec-music (make-voice-props-set cue-voice) 'Voice "cue")
588 (context-spec-music (make-voice-props-revert) 'Voice "cue"))))
590 (make-sequential-music
592 (make-voice-props-set main-voice)
594 (make-voice-props-revert))))
595 (set! (ly:music-property quote-music 'element) main-music)))
600 (define-public ((quote-substitute quote-tab) music)
601 (let* ((quoted-name (ly:music-property music 'quoted-music-name))
602 (quoted-vector (if (string? quoted-name)
603 (hash-ref quote-tab quoted-name #f)
606 (if (string? quoted-name)
607 (if (vector? quoted-vector)
608 (set! (ly:music-property music 'quoted-events) quoted-vector)
609 (ly:warn "Cannot find quoted music `~S'" quoted-name)))
614 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
615 ;; switch it on here, so parsing and init isn't checked (too slow!)
617 ;; automatic music transformations.
619 (define (switch-on-debugging m)
620 (if (defined? 'set-debug-cell-accesses!)
621 (set-debug-cell-accesses! 15000))
624 (define (music-check-error music)
627 (if (and (ly:music? m)
628 (eq? (ly:music-property m 'error-found) #t))
631 (for-each signal (ly:music-property music 'elements))
632 (signal (ly:music-property music 'element))
635 (set! (ly:music-property music 'error-found) #t))
638 (define-public toplevel-music-functions
640 ;; check-start-chords ; ; no longer needed with chord syntax.
641 (lambda (music parser) (voicify-music music))
642 (lambda (x parser) (music-map glue-mm-rest-texts x))
643 (lambda (x parser) (music-map music-check-error x))
644 (lambda (music parser)
646 (music-map (quote-substitute (ly:parser-lookup parser 'musicQuotes)) music))
647 ;; switch-on-debugging
648 (lambda (x parser) (music-map cue-substitute x))))
653 (define (apply-durations lyric-music durations)
654 (define (apply-duration music)
655 (if (and (not (equal? (ly:music-length music) ZERO-MOMENT))
656 (ly:duration? (ly:music-property music 'duration)))
658 (set! (ly:music-property music 'duration) (car durations))
659 (set! durations (cdr durations)))))
661 (music-map apply-duration lyric-music))
664 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
667 (define-public ((add-balloon-text object-name text off) grob orig-context cur-context)
668 "Usage: see input/regression/balloon.ly "
669 (let* ((meta (ly:grob-property grob 'meta))
670 (nm (if (pair? meta) (cdr (assoc 'name meta)) "nonexistant"))
671 (cb (ly:grob-property grob 'print-function)))
672 (if (equal? nm object-name)
674 (set! (ly:grob-property grob 'print-function) Balloon_interface::print)
675 (set! (ly:grob-property grob 'balloon-original-callback) cb)
676 (set! (ly:grob-property grob 'balloon-text) text)
677 (set! (ly:grob-property grob 'balloon-text-offset) off)
678 (set! (ly:grob-property grob 'balloon-text-props) '((font-family . roman)))))))
680 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
683 (define-public (set-accidentals-properties extra-natural
687 (make-sequential-music
688 (append (if (boolean? extra-natural)
689 (list (make-property-set 'extraNatural extra-natural))
691 (list (make-property-set 'autoAccidentals auto-accs)
692 (make-property-set 'autoCautionaries auto-cauts))))
695 (define-public (set-accidental-style style . rest)
696 "Set accidental style to STYLE. Optionally takes a context argument,
697 e.g. 'Staff or 'Voice. The context defaults to Voice, except for piano styles, which
698 use GrandStaff as a context. "
699 (let ((context (if (pair? rest)
701 (pcontext (if (pair? rest)
702 (car rest) 'GrandStaff)))
705 ;; accidentals as they were common in the 18th century.
706 ((equal? style 'default)
707 (set-accidentals-properties #t '(Staff (same-octave . 0))
709 ;; accidentals from one voice do NOT get cancelled in other voices
710 ((equal? style 'voice)
711 (set-accidentals-properties #t '(Voice (same-octave . 0))
713 ;; accidentals as suggested by Kurt Stone, Music Notation in the 20th century.
714 ;; This includes all the default accidentals, but accidentals also needs cancelling
715 ;; in other octaves and in the next measure.
716 ((equal? style 'modern)
717 (set-accidentals-properties #f '(Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
719 ;; the accidentals that Stone adds to the old standard as cautionaries
720 ((equal? style 'modern-cautionary)
721 (set-accidentals-properties #f '(Staff (same-octave . 0))
722 '(Staff (any-octave . 0) (same-octave . 1))
724 ;; Multivoice accidentals to be read both by musicians playing one voice
725 ;; and musicians playing all voices.
726 ;; Accidentals are typeset for each voice, but they ARE cancelled across voices.
727 ((equal? style 'modern-voice)
728 (set-accidentals-properties #f
729 '(Voice (same-octave . 0) (any-octave . 0) (same-octave . 1)
730 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
733 ;; same as modernVoiceAccidental eccept that all special accidentals are typeset
735 ((equal? style 'modern-voice-cautionary)
736 (set-accidentals-properties #f
737 '(Voice (same-octave . 0))
738 '(Voice (any-octave . 0) (same-octave . 1)
739 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
741 ;; stone's suggestions for accidentals on grand staff.
742 ;; Accidentals are cancelled across the staves in the same grand staff as well
743 ((equal? style 'piano)
744 (set-accidentals-properties #f
745 '(Staff (same-octave . 0)
746 (any-octave . 0) (same-octave . 1)
747 GrandStaff (any-octave . 0) (same-octave . 1))
750 ((equal? style 'piano-cautionary)
751 (set-accidentals-properties #f
752 '(Staff (same-octave . 0))
753 '(Staff (any-octave . 0) (same-octave . 1)
754 GrandStaff (any-octave . 0) (same-octave . 1))
756 ;; do not set localKeySignature when a note alterated differently from
757 ;; localKeySignature is found.
758 ;; Causes accidentals to be printed at every note instead of
759 ;; remembered for the duration of a measure.
760 ;; accidentals not being remembered, causing accidentals always to be typeset relative to the time signature
761 ((equal? style 'forget)
762 (set-accidentals-properties '()
763 '(Staff (same-octave . -1))
765 ;; Do not reset the key at the start of a measure. Accidentals will be
766 ;; printed only once and are in effect until overridden, possibly many
768 ((equal? style 'no-reset)
769 (set-accidentals-properties '()
770 '(Staff (same-octave . #t))
774 (ly:warn "Unknown accidental style: ~S" (symbol->string style))
775 (make-sequential-music '()))))))
777 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
779 (define-public (skip-of-length mus)
780 "Create a skip of exactly the same length as MUS."
784 'duration (ly:make-duration 0 0))))
786 (make-event-chord (list (ly:music-compress skip (ly:music-length mus))))))
788 (define-public (mmrest-of-length mus)
789 "Create a mmrest of exactly the same length as MUS."
792 (make-multi-measure-rest
793 (ly:make-duration 0 0) '())))
794 (ly:music-compress skip (ly:music-length mus))