1 ;;;; music-functions.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--2006 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!))
21 (define-public ly:grob-property
22 (make-procedure-with-setter ly:grob-property
23 ly:grob-set-property!))
25 (define-public ly:prob-property
26 (make-procedure-with-setter ly:prob-property
27 ly:prob-set-property!))
29 (define-public (music-map function music)
30 "Apply @var{function} to @var{music} and all of the music it contains.
32 First it recurses over the children, then the function is applied to MUSIC.
34 (let ((es (ly:music-property music 'elements))
35 (e (ly:music-property music 'element)))
36 (set! (ly:music-property music 'elements)
37 (map (lambda (y) (music-map function y)) es))
39 (set! (ly:music-property music 'element)
40 (music-map function e)))
43 (define-public (music-filter pred? music)
44 "Filter out music expressions that do not satisfy PRED."
46 (define (inner-music-filter pred? music)
48 (let* ((es (ly:music-property music 'elements))
49 (e (ly:music-property music 'element))
50 (as (ly:music-property music 'articulations))
51 (filtered-as (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) as)))
52 (filtered-e (if (ly:music? e)
53 (inner-music-filter pred? e)
55 (filtered-es (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) es))))
56 (set! (ly:music-property music 'element) filtered-e)
57 (set! (ly:music-property music 'elements) filtered-es)
58 (set! (ly:music-property music 'articulations) filtered-as)
59 ;; if filtering emptied the expression, we remove it completely.
60 (if (or (not (pred? music))
61 (and (eq? filtered-es '()) (not (ly:music? e))
62 (or (not (eq? es '()))
67 (set! music (inner-music-filter pred? music))
70 (make-music 'Music))) ;must return music.
72 (define-public (display-music music)
73 "Display music, not done with music-map for clarity of presentation."
76 (let ((es (ly:music-property music 'elements))
77 (e (ly:music-property music 'element)))
78 (display (ly:music-mutable-properties music))
80 (begin (display "\nElements: {\n")
81 (map display-music es)
91 ;;; A scheme music pretty printer
93 (define (markup-expression->make-markup markup-expression)
94 "Transform `markup-expression' into an equivalent, hopefuly readable, scheme expression.
96 \\markup \\bold \\italic hello
98 (markup #:line (#:bold (#:italic (#:simple \"hello\"))))"
99 (define (proc->command-keyword proc)
100 "Return a keyword, eg. `#:bold', from the `proc' function, eg. #<procedure bold-markup (layout props arg)>"
101 (let ((cmd-markup (symbol->string (procedure-name proc))))
102 (symbol->keyword (string->symbol (substring cmd-markup 0 (- (string-length cmd-markup)
103 (string-length "-markup")))))))
104 (define (transform-arg arg)
105 (cond ((and (pair? arg) (markup? (car arg))) ;; a markup list
106 (apply append (map inner-markup->make-markup arg)))
107 ((and (not (string? arg)) (markup? arg)) ;; a markup
108 (inner-markup->make-markup arg))
111 (define (inner-markup->make-markup mrkup)
112 (let ((cmd (proc->command-keyword (car mrkup)))
113 (args (map transform-arg (cdr mrkup))))
116 (if (string? markup-expression)
118 `(markup ,@(inner-markup->make-markup markup-expression))))
120 (define-public (music->make-music obj)
121 "Generate a expression that, once evaluated, may return an object equivalent to `obj',
122 that is, for a music expression, a (make-music ...) form."
123 (cond (;; markup expression
125 (markup-expression->make-markup obj))
129 ',(ly:music-property obj 'name)
130 ,@(apply append (map (lambda (prop)
132 ,(if (and (not (markup? (cdr prop)))
134 (pair? (cdr prop))) ;; property is a non-empty list
135 `(list ,@(map music->make-music (cdr prop)))
136 (music->make-music (cdr prop)))))
137 (remove (lambda (prop)
138 (eqv? (car prop) 'origin))
139 (ly:music-mutable-properties obj))))))
142 `(ly:make-moment ,(ly:moment-main-numerator obj)
143 ,(ly:moment-main-denominator obj)
144 ,(ly:moment-grace-numerator obj)
145 ,(ly:moment-grace-denominator obj)))
148 `(ly:make-duration ,(ly:duration-log obj)
149 ,(ly:duration-dot-count obj)
150 ,(car (ly:duration-factor obj))
151 ,(cdr (ly:duration-factor obj))))
154 `(ly:make-pitch ,(ly:pitch-octave obj)
155 ,(ly:pitch-notename obj)
156 ,(ly:pitch-alteration obj)))
159 (or (procedure-name obj) obj))
160 (;; a symbol (avoid having an unquoted symbol)
163 (;; an empty list (avoid having an unquoted empty list)
169 (use-modules (ice-9 pretty-print))
170 (define*-public (display-scheme-music obj #:optional (port (current-output-port)))
171 "Displays `obj', typically a music expression, in a friendly fashion,
172 which often can be read back in order to generate an equivalent expression.
176 (pretty-print (music->make-music obj) port)
180 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
182 (define (shift-one-duration-log music shift dot)
183 " add SHIFT to ly:duration-log and optionally
184 a dot to any note encountered. This scales the music up by a factor
185 2^shift * (2 - (1/2)^dot)"
186 (let ((d (ly:music-property music 'duration)))
188 (let* ((cp (ly:duration-factor d))
189 (nd (ly:make-duration (+ shift (ly:duration-log d))
190 (+ dot (ly:duration-dot-count d))
193 (set! (ly:music-property music 'duration) nd)))
198 (define-public (shift-duration-log music shift dot)
199 (music-map (lambda (x) (shift-one-duration-log x shift dot))
202 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
205 (define-public (note-to-cluster music)
206 "Replace NoteEvents by ClusterNoteEvents."
207 (if (eq? (ly:music-property music 'name) 'NoteEvent)
208 (make-music 'ClusterNoteEvent
209 'pitch (ly:music-property music 'pitch)
210 'duration (ly:music-property music 'duration))
213 (define-public (notes-to-clusters music)
214 (music-map note-to-cluster music))
216 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
219 (define-public (unfold-repeats music)
221 This function replaces all repeats with unfold repeats. "
223 (let ((es (ly:music-property music 'elements))
224 (e (ly:music-property music 'element))
226 (if (memq 'repeated-music (ly:music-property music 'types))
228 ((props (ly:music-mutable-properties music))
229 (old-name (ly:music-property music 'name))
230 (flattened (flatten-alist props)))
232 (set! music (apply make-music (cons 'UnfoldedRepeatedMusic
235 (if (equal? old-name 'TremoloRepeatedMusic)
236 (let* ((seq-arg? (memq 'sequential-music
237 (ly:music-property e 'types)))
238 (count (ly:music-property music 'repeat-count))
239 (dot-shift (if (= 0 (remainder count 3))
243 (set! count (* 2 (quotient count 3))))
245 (shift-duration-log music (+ (if seq-arg? 1 0)
246 (ly:intlog2 count)) dot-shift)
249 (ly:music-compress e (ly:make-moment (length (ly:music-property
250 e 'elements)) 1)))))))
254 (set! (ly:music-property music 'elements)
255 (map unfold-repeats es)))
257 (set! (ly:music-property music 'element)
261 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
262 ;; property setting music objs.
264 (define-public (make-grob-property-set grob gprop val)
265 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
266 i.e. this is not an override"
267 (make-music 'OverrideProperty
273 (define-public (make-grob-property-override grob gprop val)
274 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
275 i.e. this is not an override"
276 (make-music 'OverrideProperty
281 (define-public (make-grob-property-revert grob gprop)
282 "Revert the grob property GPROP for GROB."
283 (make-music 'RevertProperty
285 'grob-property gprop))
287 (define direction-polyphonic-grobs
288 '(Stem Tie Rest Slur PhrasingSlur Script TextScript Dots DotColumn Fingering))
290 (define-safe-public (make-voice-props-set n)
291 (make-sequential-music
293 (map (lambda (x) (make-grob-property-set x 'direction
295 direction-polyphonic-grobs)
297 (make-grob-property-set 'NoteColumn 'horizontal-shift (quotient n 2))
298 (make-grob-property-set 'MultiMeasureRest 'staff-position (if (odd? n) -4 4))))))
300 (define-safe-public (make-voice-props-revert)
301 (make-sequential-music
303 (map (lambda (x) (make-grob-property-revert x 'direction))
304 direction-polyphonic-grobs)
305 (list (make-grob-property-revert 'NoteColumn 'horizontal-shift))
306 (list (make-grob-property-revert 'MultiMeasureRest 'staff-position)))))
309 (define-safe-public (context-spec-music m context #:optional id)
310 "Add \\context CONTEXT = ID to M. "
311 (let ((cm (make-music 'ContextSpeccedMusic
313 'context-type context)))
315 (set! (ly:music-property cm 'context-id) id))
318 (define-public (descend-to-context m context)
319 "Like context-spec-music, but only descending. "
320 (let ((cm (context-spec-music m context)))
321 (ly:music-set-property! cm 'descend-only #t)
324 (define-public (make-non-relative-music mus)
325 (make-music 'UnrelativableMusic
328 (define-public (make-apply-context func)
329 (make-music 'ApplyContext
332 (define-public (make-sequential-music elts)
333 (make-music 'SequentialMusic
336 (define-public (make-simultaneous-music elts)
337 (make-music 'SimultaneousMusic
340 (define-safe-public (make-event-chord elts)
341 (make-music 'EventChord
344 (define-public (make-skip-music dur)
345 (make-music 'SkipMusic
348 (define-public (make-grace-music music)
349 (make-music 'GraceMusic
355 (define-public (make-multi-measure-rest duration location)
356 (make-music 'MultiMeasureRestMusicGroup
358 'elements (list (make-music 'BarCheck
360 (make-event-chord (list (make-music 'MultiMeasureRestEvent
362 'duration duration)))
363 (make-music 'BarCheck
366 (define-public (glue-mm-rest-texts music)
367 "Check if we have R1*4-\\markup { .. }, and if applicable convert to
368 a property set for MultiMeasureRestNumber."
369 (define (script-to-mmrest-text script-music)
370 "Extract 'direction and 'text from SCRIPT-MUSIC, and transform MultiMeasureTextEvent"
371 (let ((dir (ly:music-property script-music 'direction))
372 (p (make-music 'MultiMeasureTextEvent
373 'text (ly:music-property script-music 'text))))
375 (set! (ly:music-property p 'direction) dir))
378 (if (eq? (ly:music-property music 'name) 'MultiMeasureRestMusicGroup)
379 (let* ((text? (lambda (x) (memq 'script-event (ly:music-property x 'types))))
380 (event? (lambda (x) (memq 'event (ly:music-property x 'types))))
381 (group-elts (ly:music-property music 'elements))
387 (map script-to-mmrest-text (filter text? group-elts)))
389 (remove text? group-elts))
391 (set! events (filter event? group-elts))
392 (set! others (remove event? group-elts))
394 (if (or (pair? texts) (pair? events))
395 (set! (ly:music-property music 'elements)
396 (cons (make-event-chord
397 (append texts events))
405 (define-public (make-property-set sym val)
406 (make-music 'PropertySet
410 (define-public (make-ottava-set octavation)
411 (let ((m (make-music 'ApplyContext)))
412 (define (ottava-modify context)
413 "Either reset middleCPosition to the stored original, or remember
414 old middleCPosition, add OCTAVATION to middleCPosition, and set
415 OTTAVATION to `8va', or whatever appropriate."
416 (if (number? (ly:context-property context 'middleCPosition))
418 (let ((where (ly:context-property-where-defined context 'middleCPosition))
419 (oc0 (ly:context-property context 'originalCentralCPosition)))
420 (ly:context-set-property! context 'middleCPosition oc0)
421 (ly:context-unset-property where 'originalCentralCPosition)
422 (ly:context-unset-property where 'ottavation))
423 (let* ((where (ly:context-property-where-defined context 'middleCPosition))
424 (c0 (ly:context-property context 'middleCPosition))
425 (new-c0 (+ c0 (* -7 octavation)))
426 (string (cdr (assoc octavation '((2 . "15ma")
430 (-2 . "15ma bassa"))))))
431 (ly:context-set-property! context 'middleCPosition new-c0)
432 (ly:context-set-property! context 'originalCentralCPosition c0)
433 (ly:context-set-property! context 'ottavation string)))))
434 (set! (ly:music-property m 'procedure) ottava-modify)
435 (context-spec-music m 'Staff)))
437 (define-public (set-octavation ottavation)
438 (ly:export (make-ottava-set ottavation)))
440 (define-public (make-time-signature-set num den . rest)
441 "Set properties for time signature NUM/DEN. Rest can contain a list
443 (let* ((set1 (make-property-set 'timeSignatureFraction (cons num den)))
444 (beat (ly:make-moment 1 den))
445 (len (ly:make-moment num den))
446 (set2 (make-property-set 'beatLength beat))
447 (set3 (make-property-set 'measureLength len))
448 (set4 (make-property-set 'beatGrouping (if (pair? rest)
451 (basic (list set1 set2 set3 set4)))
453 (context-spec-music (make-sequential-music basic) 'Timing) 'Score)))
455 (define-public (make-mark-set label)
456 "Make the music for the \\mark command."
457 (let* ((set (if (integer? label)
458 (context-spec-music (make-property-set 'rehearsalMark label)
461 (ev (make-music 'MarkEvent))
462 (ch (make-event-chord (list ev))))
464 (make-sequential-music (list set ch))
466 (set! (ly:music-property ev 'label) label)
469 (define-public (set-time-signature num den . rest)
470 (ly:export (apply make-time-signature-set `(,num ,den . ,rest))))
472 (define-safe-public (make-penalty-music pen page-pen)
473 (make-music 'BreakEvent
475 'page-penalty page-pen))
477 (define-safe-public (make-articulation name)
478 (make-music 'ArticulationEvent
479 'articulation-type name))
481 (define-public (make-lyric-event string duration)
482 (make-music 'LyricEvent
486 (define-safe-public (make-span-event type spandir)
488 'span-direction spandir))
490 (define-public (set-mus-properties! m alist)
491 "Set all of ALIST as properties of M."
494 (set! (ly:music-property m (caar alist)) (cdar alist))
495 (set-mus-properties! m (cdr alist)))))
497 (define-public (music-separator? m)
499 (let ((ts (ly:music-property m 'types)))
500 (memq 'separator ts)))
502 ;;; splitting chords into voices.
503 (define (voicify-list lst number)
504 "Make a list of Musics.
506 voicify-list :: [ [Music ] ] -> number -> [Music]
507 LST is a list music-lists.
509 NUMBER is 0-base, i.e. Voice=1 (upstems) has number 0.
513 (cons (context-spec-music
514 (make-sequential-music
515 (list (make-voice-props-set number)
516 (make-simultaneous-music (car lst))))
517 'Voice (number->string (1+ number)))
518 (voicify-list (cdr lst) (1+ number)))))
520 (define (voicify-chord ch)
521 "Split the parts of a chord into different Voices using separator"
522 (let ((es (ly:music-property ch 'elements)))
523 (set! (ly:music-property ch 'elements)
524 (voicify-list (split-list es music-separator?) 0))
527 (define-public (voicify-music m)
528 "Recursively split chords that are separated with \\ "
529 (if (not (ly:music? m))
530 (ly:error (_ "music expected: ~S") m))
531 (let ((es (ly:music-property m 'elements))
532 (e (ly:music-property m 'element)))
535 (set! (ly:music-property m 'elements) (map voicify-music es)))
537 (set! (ly:music-property m 'element) (voicify-music e)))
538 (if (and (equal? (ly:music-property m 'name) 'SimultaneousMusic)
539 (reduce (lambda (x y ) (or x y)) #f (map music-separator? es)))
540 (set! m (context-spec-music (voicify-chord m) 'Staff)))
543 (define-public (empty-music)
544 (ly:export (make-music 'Music)))
547 ; Make a function that checks score element for being of a specific type.
548 (define-public (make-type-checker symbol)
551 ;;(eq? #t (ly:grob-property elt symbol))
552 (not (eq? #f (memq symbol (ly:grob-property elt 'interfaces))))))
554 (define-public ((outputproperty-compatibility func sym val) grob g-context ao-context)
556 (set! (ly:grob-property grob sym) val)))
559 (define-public ((set-output-property grob-name symbol val) grob grob-c context)
562 \\applyoutput #(set-output-property 'Clef 'extra-offset '(0 . 1))
565 (let ((meta (ly:grob-property grob 'meta)))
566 (if (equal? (cdr (assoc 'name meta)) grob-name)
567 (set! (ly:grob-property grob symbol) val))))
571 (define-public (smart-bar-check n)
572 "Make a bar check that checks for a specific bar number.
574 (let ((m (make-music 'ApplyContext)))
576 (let* ((bn (ly:context-property tr 'currentBarNumber)))
580 ;; FIXME: uncomprehensable message
581 (_ "Bar check failed. Expect to be at ~a, instead at ~a")
583 (set! (ly:music-property m 'procedure) checker)
587 (define-public (skip->rest mus)
589 "Replace MUS by RestEvent of the same duration if it is a
590 SkipEvent. Useful for extracting parts from crowded scores"
592 (if (equal? (ly:music-property mus 'name) 'SkipEvent)
593 (make-music 'RestEvent 'duration (ly:music-property mus 'duration))
597 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
598 ;; warn for bare chords at start.
600 (define (has-request-chord elts)
601 (reduce (lambda (x y) (or x y)) #f
603 (equal? (ly:music-property x 'name) 'RequestChord))
606 (define-public (ly:music-message music msg)
607 (let ((ip (ly:music-property music 'origin)))
608 (if (ly:input-location? ip)
609 (ly:input-message ip msg)
612 (define (check-start-chords music)
613 "Check music expression for a Simultaneous_music containing notes\n(ie. Request_chords),
614 without context specification. Called from parser."
615 (let ((es (ly:music-property music 'elements))
616 (e (ly:music-property music 'element))
617 (name (ly:music-property music 'name)))
618 (cond ((equal? name "Context_specced_music") #t)
619 ((equal? name "Simultaneous_music")
620 (if (has-request-chord es)
621 (ly:music-message music "Starting score with a chord.\nInsert an explicit \\context before chord")
622 (map check-start-chords es)))
623 ((equal? name "SequentialMusic")
625 (check-start-chords (car es))))
626 (else (if (ly:music? e) (check-start-chords e)))))
631 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
633 ;; setting stuff for grace context.
636 (define (vector-extend v x)
637 "Make a new vector consisting of V, with X added to the end."
638 (let* ((n (vector-length v))
639 (nv (make-vector (+ n 1) '())))
640 (vector-move-left! v 0 n nv 0)
644 (define (vector-map f v)
645 "Map F over V. This function returns nothing."
646 (do ((n (vector-length v))
649 (f (vector-ref v i))))
651 (define (vector-reverse-map f v)
652 "Map F over V, N to 0 order. This function returns nothing."
653 (do ((i (- (vector-length v) 1) (- i 1)))
655 (f (vector-ref v i))))
657 ;; TODO: make a remove-grace-property too.
658 (define-public (add-grace-property context-name grob sym val)
659 "Set SYM=VAL for GROB in CONTEXT-NAME. "
660 (define (set-prop context)
661 (let* ((where (ly:context-property-where-defined context 'graceSettings))
662 (current (ly:context-property where 'graceSettings))
663 (new-settings (append current
664 (list (list context-name grob sym val)))))
665 (ly:context-set-property! where 'graceSettings new-settings)))
666 (ly:export (context-spec-music (make-apply-context set-prop) 'Voice)))
670 (defmacro-public def-grace-function (start stop)
671 `(def-music-function (parser location music) (ly:music?)
672 (make-music 'GraceMusic
674 'element (make-music 'SequentialMusic
675 'elements (list (ly:music-deep-copy ,start)
677 (ly:music-deep-copy ,stop))))))
679 (defmacro-public def-music-function (args signature . body)
680 "Helper macro for `ly:make-music-function'.
682 (def-music-function (parser location arg1 arg2 ...) (arg1-type? arg2-type? ...)
685 `(ly:make-music-function (list ,@signature)
690 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
692 (define-public (cue-substitute quote-music)
693 "Must happen after quote-substitute."
695 (if (vector? (ly:music-property quote-music 'quoted-events))
696 (let* ((dir (ly:music-property quote-music 'quoted-voice-direction))
697 (main-voice (if (eq? 1 dir) 1 0))
698 (cue-voice (if (eq? 1 dir) 0 1))
699 (main-music (ly:music-property quote-music 'element))
700 (return-value quote-music))
702 (if (or (eq? 1 dir) (eq? -1 dir))
704 ;; if we have stem dirs, change both quoted and main music
705 ;; to have opposite stems.
709 ;; cannot context-spec Quote-music, since context
710 ;; for the quotes is determined in the iterator.
711 (make-sequential-music
713 (context-spec-music (make-voice-props-set cue-voice) 'CueVoice "cue")
715 (context-spec-music (make-voice-props-revert) 'CueVoice "cue"))))
717 (make-sequential-music
719 (make-voice-props-set main-voice)
721 (make-voice-props-revert))))
722 (set! (ly:music-property quote-music 'element) main-music)))
727 (define-public ((quote-substitute quote-tab) music)
728 (let* ((quoted-name (ly:music-property music 'quoted-music-name))
729 (quoted-vector (if (string? quoted-name)
730 (hash-ref quote-tab quoted-name #f)
733 (if (string? quoted-name)
734 (if (vector? quoted-vector)
735 (set! (ly:music-property music 'quoted-events) quoted-vector)
736 (ly:warning (_ "can't find quoted music `~S'" quoted-name))))
740 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
741 ;; switch it on here, so parsing and init isn't checked (too slow!)
743 ;; automatic music transformations.
745 (define (switch-on-debugging m)
746 (if (defined? 'set-debug-cell-accesses!)
747 (set-debug-cell-accesses! 15000))
750 (define (music-check-error music)
753 (if (and (ly:music? m)
754 (eq? (ly:music-property m 'error-found) #t))
757 (for-each signal (ly:music-property music 'elements))
758 (signal (ly:music-property music 'element))
761 (set! (ly:music-property music 'error-found) #t))
764 (define (precompute-music-length music)
765 (set! (ly:music-property music 'length)
766 (ly:music-length music))
769 (define (skip-to-last music parser)
773 << { \\set skipTypesetting = ##t
774 LENGTHOF(\\showLastLength)
775 \\set skipTypesetting = ##t }
781 ((show-last (ly:parser-lookup parser 'showLastLength)))
783 (if (ly:music? show-last)
785 ((orig-length (ly:music-length music))
786 (skip-length (ly:moment-sub orig-length (ly:music-length show-last))))
788 (make-simultaneous-music
790 (make-sequential-music
792 (context-spec-music (make-property-set 'skipTypesetting #t) 'Score)
793 (make-music 'SkipMusic 'duration
794 (ly:make-duration 0 0
795 (ly:moment-main-numerator skip-length)
796 (ly:moment-main-denominator skip-length)))
797 (context-spec-music (make-property-set 'skipTypesetting #f) 'Score)))
802 (define-public toplevel-music-functions
804 (lambda (music parser) (voicify-music music))
805 (lambda (x parser) (music-map glue-mm-rest-texts x))
806 (lambda (x parser) (music-map music-check-error x))
807 (lambda (x parser) (music-map precompute-music-length x))
808 (lambda (music parser)
810 (music-map (quote-substitute (ly:parser-lookup parser 'musicQuotes)) music))
812 ;; switch-on-debugging
813 (lambda (x parser) (music-map cue-substitute x))
816 (skip-to-last x parser)
822 (define (apply-durations lyric-music durations)
823 (define (apply-duration music)
824 (if (and (not (equal? (ly:music-length music) ZERO-MOMENT))
825 (ly:duration? (ly:music-property music 'duration)))
827 (set! (ly:music-property music 'duration) (car durations))
828 (set! durations (cdr durations)))))
830 (music-map apply-duration lyric-music))
833 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
836 (define-public ((add-balloon-text object-name text off) grob orig-context cur-context)
837 "Usage: see input/regression/balloon.ly "
838 (let* ((meta (ly:grob-property grob 'meta))
839 (cb (ly:grob-property-data grob 'stencil))
840 (nm (if (pair? meta) (cdr (assoc 'name meta)) "nonexistant")))
841 (if (and (equal? nm object-name)
844 (ly:grob-set-property! grob 'stencil ly:balloon-interface::print)
845 (set! (ly:grob-property grob 'original-stencil) cb)
846 (set! (ly:grob-property grob 'balloon-text) text)
847 (set! (ly:grob-property grob 'balloon-text-offset) off)
848 (set! (ly:grob-property grob 'balloon-text-props) '((font-family . roman)))))))
850 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
853 (define-public (set-accidentals-properties extra-natural
857 (make-sequential-music
858 (append (if (boolean? extra-natural)
859 (list (make-property-set 'extraNatural extra-natural))
861 (list (make-property-set 'autoAccidentals auto-accs)
862 (make-property-set 'autoCautionaries auto-cauts))))
865 (define-public (set-accidental-style style . rest)
866 "Set accidental style to STYLE. Optionally takes a context argument,
867 e.g. 'Staff or 'Voice. The context defaults to Voice, except for piano styles, which
868 use GrandStaff as a context. "
869 (let ((context (if (pair? rest)
871 (pcontext (if (pair? rest)
872 (car rest) 'GrandStaff)))
875 ;; accidentals as they were common in the 18th century.
876 ((equal? style 'default)
877 (set-accidentals-properties #t '(Staff (same-octave . 0))
879 ;; accidentals from one voice do NOT get cancelled in other voices
880 ((equal? style 'voice)
881 (set-accidentals-properties #t '(Voice (same-octave . 0))
883 ;; accidentals as suggested by Kurt Stone, Music Notation in the 20th century.
884 ;; This includes all the default accidentals, but accidentals also needs cancelling
885 ;; in other octaves and in the next measure.
886 ((equal? style 'modern)
887 (set-accidentals-properties #f '(Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
889 ;; the accidentals that Stone adds to the old standard as cautionaries
890 ((equal? style 'modern-cautionary)
891 (set-accidentals-properties #f '(Staff (same-octave . 0))
892 '(Staff (any-octave . 0) (same-octave . 1))
894 ;; Multivoice accidentals to be read both by musicians playing one voice
895 ;; and musicians playing all voices.
896 ;; Accidentals are typeset for each voice, but they ARE cancelled across voices.
897 ((equal? style 'modern-voice)
898 (set-accidentals-properties #f
899 '(Voice (same-octave . 0) (any-octave . 0) (same-octave . 1)
900 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
903 ;; same as modernVoiceAccidental eccept that all special accidentals are typeset
905 ((equal? style 'modern-voice-cautionary)
906 (set-accidentals-properties #f
907 '(Voice (same-octave . 0))
908 '(Voice (any-octave . 0) (same-octave . 1)
909 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
911 ;; stone's suggestions for accidentals on grand staff.
912 ;; Accidentals are cancelled across the staves in the same grand staff as well
913 ((equal? style 'piano)
914 (set-accidentals-properties #f
915 '(Staff (same-octave . 0)
916 (any-octave . 0) (same-octave . 1)
917 GrandStaff (any-octave . 0) (same-octave . 1))
920 ((equal? style 'piano-cautionary)
921 (set-accidentals-properties #f
922 '(Staff (same-octave . 0))
923 '(Staff (any-octave . 0) (same-octave . 1)
924 GrandStaff (any-octave . 0) (same-octave . 1))
926 ;; do not set localKeySignature when a note alterated differently from
927 ;; localKeySignature is found.
928 ;; Causes accidentals to be printed at every note instead of
929 ;; remembered for the duration of a measure.
930 ;; accidentals not being remembered, causing accidentals always to be typeset relative to the time signature
931 ((equal? style 'forget)
932 (set-accidentals-properties '()
933 '(Staff (same-octave . -1))
935 ;; Do not reset the key at the start of a measure. Accidentals will be
936 ;; printed only once and are in effect until overridden, possibly many
938 ((equal? style 'no-reset)
939 (set-accidentals-properties '()
940 '(Staff (same-octave . #t))
944 (ly:warning (_ "unknown accidental style: ~S" style))
945 (make-sequential-music '()))))))
947 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
949 (define-public (skip-of-length mus)
950 "Create a skip of exactly the same length as MUS."
954 'duration (ly:make-duration 0 0))))
956 (make-event-chord (list (ly:music-compress skip (ly:music-length mus))))))
958 (define-public (mmrest-of-length mus)
959 "Create a mmrest of exactly the same length as MUS."
962 (make-multi-measure-rest
963 (ly:make-duration 0 0) '())))
964 (ly:music-compress skip (ly:music-length mus))