#(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})")
+(use like @code{\\once})")
(make-music 'AnnotateOutputEvent
'symbol grob-name
'X-offset (car offset)
balloonText =
#(define-music-function (parser location offset text) (number-pair? markup?)
- (_i "Attach @var{text} at @var{offset} (use like @code{\tweak})")
+ (_i "Attach @var{text} at @var{offset} (use like @code{\\tweak})")
(make-music 'AnnotateOutputEvent
'X-offset (car offset)
'Y-offset (cdr offset)
#(define-music-function
(parser location name) (string?)
(_i "Switch instrument to @var{name}, which must be predefined with
-@var{\addInstrumentDefinition}.")
+@code{\\addInstrumentDefinition}.")
(let*
((handle (assoc name instrument-definitions))
(instrument-def (if handle (cdr handle) '()))
#(define-music-function (parser location proc mus) (procedure? ly:music?)
(music-map proc mus))
+overrideBeamSettings =
+#(define-music-function
+ (parser location
+ context time-signature rule-type grouping-rule)
+ (symbol? pair? symbol? pair?)
+
+ (_i "Override beamSettings in @var{context}
+for time signatures of @var{time-signature} and rules of type
+@var{rule-type} to have a grouping rule alist
+@var{grouping-rule}.
+@var{rule-type} can be @code{end} or @code{subdivide},
+with a potential future value of @code{begin}.
+@var{grouping-rule} is an alist of @var{(beam-type . grouping)}
+entries. @var{grouping} is in units of @var{beam-type}. If
+@var{beam-type} is @code{*}, grouping is in units of the denominator
+of @var{time-signature}.")
+
+ ;; TODO -- add warning if largest value of grouping is
+ ;; greater than time-signature.
+
+#{
+#(override-beam-setting
+ $time-signature $rule-type $grouping-rule $context)
+#})
overrideProperty =
#(define-music-function (parser location name property value)
reference-note))
+revertBeamSettings =
+#(define-music-function
+ (parser location
+ context time-signature rule-type)
+ (symbol? pair? symbol?)
+
+ (_i "Revert beam settings in @var{context} for time signatures of
+@var{time-signature} and groups of type
+@var{group-type}. @var{group-type} can be @code{end}
+or @code{subdivide}.")
+#{
+ #(revert-beam-setting $time-signature $rule-type $context)
+#})
scaleDurations =
-#(define-music-function
- (parser location fraction music) (number-pair? ly:music?)
- (ly:music-compress music (ly:make-moment (car fraction) (cdr fraction))))
+#(define-music-function (parser location fraction music) (number-pair? 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))))
+
+setBeatGrouping =
+#(define-music-function (parser location grouping) (pair?)
+ (_i "Set the beat grouping in the current time signature to
+@var{grouping}.")
+ (define (default-group-setting c)
+ (let* ((context-time-signature
+ (ly:context-property c 'timeSignatureFraction))
+ (time-signature (if (null? context-time-signature)
+ '(4 . 4)
+ context-time-signature)))
+ (override-property-setting
+ c
+ 'beamSettings
+ (list time-signature 'end)
+ (list (cons '* grouping)))))
+ (context-spec-music
+ (make-apply-context default-group-setting)
+ 'Score))
shiftDurations =
#(define-music-function (parser location dur dots arg) (integer? integer? ly:music?)
- (_i "")
+ (_i "Scale @var{arg} up by a factor of @var{2^dur*(2-(1/2)^dots)}.")
(music-map
(lambda (x)
rightHandFinger =
#(define-music-function (parser location finger) (number-or-string?)
- (_i "Define a StrokeFingerEvent")
+ (_i "Apply @var{finger} as a fingering indication.")
(apply make-music
(append
(make-music 'SequentialMusic)))
-tag = #(define-music-function (parser location tag arg)
+tag =
+#(define-music-function (parser location tag arg)
(symbol? ly:music?)
(_i "Add @var{tag} to the @code{tags} property of @var{arg}.")
(ly:pitch-negate (pitch-of-note pitch-note)))
'Staff))
-tweak = #(define-music-function (parser location sym val arg)
- (symbol? scheme? ly:music?)
+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}.")
- (_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)
+ (if (equal? (object-property sym 'backend-type?) #f)
+ (begin
+ (ly:warning (_ "cannot find property type-check for ~a") sym)
+ (ly:warning (_ "doing assignment anyway"))))
+ (set!
+ (ly:music-property arg 'tweaks)
+ (acons sym val
+ (ly:music-property arg 'tweaks)))
+ arg)