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 ,(music->make-music (cdr prop))))
133 (remove (lambda (prop)
134 (eqv? (car prop) 'origin))
135 (ly:music-mutable-properties obj))))))
138 `(ly:make-moment ,(ly:moment-main-numerator obj)
139 ,(ly:moment-main-denominator obj)
140 ,(ly:moment-grace-numerator obj)
141 ,(ly:moment-grace-denominator obj)))
144 `(ly:make-duration ,(ly:duration-log obj)
145 ,(ly:duration-dot-count obj)
146 ,(car (ly:duration-factor obj))
147 ,(cdr (ly:duration-factor obj))))
150 `(ly:make-pitch ,(ly:pitch-octave obj)
151 ,(ly:pitch-notename obj)
152 ,(ly:pitch-alteration obj)))
155 (or (procedure-name obj) obj))
156 (;; a symbol (avoid having an unquoted symbol)
159 (;; an empty list (avoid having an unquoted empty list)
164 `(list ,@(map music->make-music obj)))
167 `(cons ,(music->make-music (car obj))
168 ,(music->make-music (cdr obj))))
172 (use-modules (ice-9 pretty-print))
173 (define*-public (display-scheme-music obj #:optional (port (current-output-port)))
174 "Displays `obj', typically a music expression, in a friendly fashion,
175 which often can be read back in order to generate an equivalent expression.
179 (pretty-print (music->make-music obj) port)
183 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
185 (define-public (shift-one-duration-log music shift dot)
186 " add SHIFT to duration-log of 'duration in music and optionally
187 a dot to any note encountered. This scales the music up by a factor
188 2^shift * (2 - (1/2)^dot)"
189 (let ((d (ly:music-property music 'duration)))
191 (let* ((cp (ly:duration-factor d))
192 (nd (ly:make-duration (+ shift (ly:duration-log d))
193 (+ dot (ly:duration-dot-count d))
196 (set! (ly:music-property music 'duration) nd)))
201 (define-public (shift-duration-log music shift dot)
202 (music-map (lambda (x) (shift-one-duration-log x shift dot))
205 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
208 (define-public (note-to-cluster music)
209 "Replace NoteEvents by ClusterNoteEvents."
210 (if (eq? (ly:music-property music 'name) 'NoteEvent)
211 (make-music 'ClusterNoteEvent
212 'pitch (ly:music-property music 'pitch)
213 'duration (ly:music-property music 'duration))
216 (define-public (notes-to-clusters music)
217 (music-map note-to-cluster music))
219 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
222 (define-public (unfold-repeats music)
224 This function replaces all repeats with unfold repeats. "
226 (let ((es (ly:music-property music 'elements))
227 (e (ly:music-property music 'element))
229 (if (memq 'repeated-music (ly:music-property music 'types))
231 ((props (ly:music-mutable-properties music))
232 (old-name (ly:music-property music 'name))
233 (flattened (flatten-alist props)))
235 (set! music (apply make-music (cons 'UnfoldedRepeatedMusic
238 (if (equal? old-name 'TremoloRepeatedMusic)
239 (let* ((seq-arg? (memq 'sequential-music
240 (ly:music-property e 'types)))
241 (count (ly:music-property music 'repeat-count))
242 (dot-shift (if (= 0 (remainder count 3))
246 (set! count (* 2 (quotient count 3))))
248 (shift-duration-log music (+ (if seq-arg? 1 0)
249 (ly:intlog2 count)) dot-shift)
252 (ly:music-compress e (ly:make-moment (length (ly:music-property
253 e 'elements)) 1)))))))
257 (set! (ly:music-property music 'elements)
258 (map unfold-repeats es)))
260 (set! (ly:music-property music 'element)
264 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
265 ;; property setting music objs.
267 (define-public (make-grob-property-set grob gprop val)
268 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
269 i.e. this is not an override"
270 (make-music 'OverrideProperty
276 (define-public (make-grob-property-override grob gprop val)
277 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
278 i.e. this is not an override"
279 (make-music 'OverrideProperty
284 (define-public (make-grob-property-revert grob gprop)
285 "Revert the grob property GPROP for GROB."
286 (make-music 'RevertProperty
288 'grob-property gprop))
290 (define direction-polyphonic-grobs
291 '(Stem Tie Rest Slur PhrasingSlur Script TextScript Dots DotColumn Fingering))
293 (define-safe-public (make-voice-props-set n)
294 (make-sequential-music
296 (map (lambda (x) (make-grob-property-set x 'direction
298 direction-polyphonic-grobs)
300 (make-grob-property-set 'NoteColumn 'horizontal-shift (quotient n 2))
301 (make-grob-property-set 'MultiMeasureRest 'staff-position (if (odd? n) -4 4))))))
303 (define-safe-public (make-voice-props-revert)
304 (make-sequential-music
306 (map (lambda (x) (make-grob-property-revert x 'direction))
307 direction-polyphonic-grobs)
308 (list (make-grob-property-revert 'NoteColumn 'horizontal-shift))
309 (list (make-grob-property-revert 'MultiMeasureRest 'staff-position)))))
312 (define-safe-public (context-spec-music m context #:optional id)
313 "Add \\context CONTEXT = ID to M. "
314 (let ((cm (make-music 'ContextSpeccedMusic
316 'context-type context)))
318 (set! (ly:music-property cm 'context-id) id))
321 (define-public (descend-to-context m context)
322 "Like context-spec-music, but only descending. "
323 (let ((cm (context-spec-music m context)))
324 (ly:music-set-property! cm 'descend-only #t)
327 (define-public (make-non-relative-music mus)
328 (make-music 'UnrelativableMusic
331 (define-public (make-apply-context func)
332 (make-music 'ApplyContext
335 (define-public (make-sequential-music elts)
336 (make-music 'SequentialMusic
339 (define-public (make-simultaneous-music elts)
340 (make-music 'SimultaneousMusic
343 (define-safe-public (make-event-chord elts)
344 (make-music 'EventChord
347 (define-public (make-skip-music dur)
348 (make-music 'SkipMusic
351 (define-public (make-grace-music music)
352 (make-music 'GraceMusic
358 (define-public (make-multi-measure-rest duration location)
359 (make-music 'MultiMeasureRestMusicGroup
361 'elements (list (make-music 'BarCheck
363 (make-event-chord (list (make-music 'MultiMeasureRestEvent
365 'duration duration)))
366 (make-music 'BarCheck
369 (define-public (glue-mm-rest-texts music)
370 "Check if we have R1*4-\\markup { .. }, and if applicable convert to
371 a property set for MultiMeasureRestNumber."
372 (define (script-to-mmrest-text script-music)
373 "Extract 'direction and 'text from SCRIPT-MUSIC, and transform MultiMeasureTextEvent"
374 (let ((dir (ly:music-property script-music 'direction))
375 (p (make-music 'MultiMeasureTextEvent
376 'text (ly:music-property script-music 'text))))
378 (set! (ly:music-property p 'direction) dir))
381 (if (eq? (ly:music-property music 'name) 'MultiMeasureRestMusicGroup)
382 (let* ((text? (lambda (x) (memq 'script-event (ly:music-property x 'types))))
383 (event? (lambda (x) (memq 'event (ly:music-property x 'types))))
384 (group-elts (ly:music-property music 'elements))
390 (map script-to-mmrest-text (filter text? group-elts)))
392 (remove text? group-elts))
394 (set! events (filter event? group-elts))
395 (set! others (remove event? group-elts))
397 (if (or (pair? texts) (pair? events))
398 (set! (ly:music-property music 'elements)
399 (cons (make-event-chord
400 (append texts events))
408 (define-public (make-property-set sym val)
409 (make-music 'PropertySet
413 (define-public (make-ottava-set octavation)
414 (let ((m (make-music 'ApplyContext)))
415 (define (ottava-modify context)
416 "Either reset middleCPosition to the stored original, or remember
417 old middleCPosition, add OCTAVATION to middleCPosition, and set
418 OTTAVATION to `8va', or whatever appropriate."
419 (if (number? (ly:context-property context 'middleCPosition))
421 (let ((where (ly:context-property-where-defined context 'middleCPosition))
422 (oc0 (ly:context-property context 'originalCentralCPosition)))
423 (ly:context-set-property! context 'middleCPosition oc0)
424 (ly:context-unset-property where 'originalCentralCPosition)
425 (ly:context-unset-property where 'ottavation))
426 (let* ((where (ly:context-property-where-defined context 'middleCPosition))
427 (c0 (ly:context-property context 'middleCPosition))
428 (new-c0 (+ c0 (* -7 octavation)))
429 (string (cdr (assoc octavation '((2 . "15ma")
433 (-2 . "15ma bassa"))))))
434 (ly:context-set-property! context 'middleCPosition new-c0)
435 (ly:context-set-property! context 'originalCentralCPosition c0)
436 (ly:context-set-property! context 'ottavation string)))))
437 (set! (ly:music-property m 'procedure) ottava-modify)
438 (context-spec-music m 'Staff)))
440 (define-public (set-octavation ottavation)
441 (ly:export (make-ottava-set ottavation)))
443 (define-public (make-time-signature-set num den . rest)
444 "Set properties for time signature NUM/DEN. Rest can contain a list
446 (let* ((set1 (make-property-set 'timeSignatureFraction (cons num den)))
447 (beat (ly:make-moment 1 den))
448 (len (ly:make-moment num den))
449 (set2 (make-property-set 'beatLength beat))
450 (set3 (make-property-set 'measureLength len))
451 (set4 (make-property-set 'beatGrouping (if (pair? rest)
454 (basic (list set1 set2 set3 set4)))
456 (context-spec-music (make-sequential-music basic) 'Timing) 'Score)))
458 (define-public (make-mark-set label)
459 "Make the music for the \\mark command."
460 (let* ((set (if (integer? label)
461 (context-spec-music (make-property-set 'rehearsalMark label)
464 (ev (make-music 'MarkEvent))
465 (ch (make-event-chord (list ev))))
467 (make-sequential-music (list set ch))
469 (set! (ly:music-property ev 'label) label)
472 (define-public (set-time-signature num den . rest)
473 (ly:export (apply make-time-signature-set `(,num ,den . ,rest))))
475 (define-safe-public (make-penalty-music pen page-pen)
476 (make-music 'BreakEvent
478 'page-penalty page-pen))
480 (define-safe-public (make-articulation name)
481 (make-music 'ArticulationEvent
482 'articulation-type name))
484 (define-public (make-lyric-event string duration)
485 (make-music 'LyricEvent
489 (define-safe-public (make-span-event type spandir)
491 'span-direction spandir))
493 (define-public (set-mus-properties! m alist)
494 "Set all of ALIST as properties of M."
497 (set! (ly:music-property m (caar alist)) (cdar alist))
498 (set-mus-properties! m (cdr alist)))))
500 (define-public (music-separator? m)
502 (let ((ts (ly:music-property m 'types)))
503 (memq 'separator ts)))
505 ;;; splitting chords into voices.
506 (define (voicify-list lst number)
507 "Make a list of Musics.
509 voicify-list :: [ [Music ] ] -> number -> [Music]
510 LST is a list music-lists.
512 NUMBER is 0-base, i.e. Voice=1 (upstems) has number 0.
516 (cons (context-spec-music
517 (make-sequential-music
518 (list (make-voice-props-set number)
519 (make-simultaneous-music (car lst))))
520 'Voice (number->string (1+ number)))
521 (voicify-list (cdr lst) (1+ number)))))
523 (define (voicify-chord ch)
524 "Split the parts of a chord into different Voices using separator"
525 (let ((es (ly:music-property ch 'elements)))
526 (set! (ly:music-property ch 'elements)
527 (voicify-list (split-list es music-separator?) 0))
530 (define-public (voicify-music m)
531 "Recursively split chords that are separated with \\ "
532 (if (not (ly:music? m))
533 (ly:error (_ "music expected: ~S") m))
534 (let ((es (ly:music-property m 'elements))
535 (e (ly:music-property m 'element)))
538 (set! (ly:music-property m 'elements) (map voicify-music es)))
540 (set! (ly:music-property m 'element) (voicify-music e)))
541 (if (and (equal? (ly:music-property m 'name) 'SimultaneousMusic)
542 (reduce (lambda (x y ) (or x y)) #f (map music-separator? es)))
543 (set! m (context-spec-music (voicify-chord m) 'Staff)))
546 (define-public (empty-music)
547 (ly:export (make-music 'Music)))
550 ; Make a function that checks score element for being of a specific type.
551 (define-public (make-type-checker symbol)
554 ;;(eq? #t (ly:grob-property elt symbol))
555 (not (eq? #f (memq symbol (ly:grob-property elt 'interfaces))))))
557 (define-public ((outputproperty-compatibility func sym val) grob g-context ao-context)
559 (set! (ly:grob-property grob sym) val)))
562 (define-public ((set-output-property grob-name symbol val) grob grob-c context)
565 \\applyoutput #(set-output-property 'Clef 'extra-offset '(0 . 1))
568 (let ((meta (ly:grob-property grob 'meta)))
569 (if (equal? (cdr (assoc 'name meta)) grob-name)
570 (set! (ly:grob-property grob symbol) val))))
574 (define-public (smart-bar-check n)
575 "Make a bar check that checks for a specific bar number.
577 (let ((m (make-music 'ApplyContext)))
579 (let* ((bn (ly:context-property tr 'currentBarNumber)))
583 ;; FIXME: uncomprehensable message
584 (_ "Bar check failed. Expect to be at ~a, instead at ~a")
586 (set! (ly:music-property m 'procedure) checker)
590 (define-public (skip->rest mus)
592 "Replace MUS by RestEvent of the same duration if it is a
593 SkipEvent. Useful for extracting parts from crowded scores"
595 (if (equal? (ly:music-property mus 'name) 'SkipEvent)
596 (make-music 'RestEvent 'duration (ly:music-property mus 'duration))
600 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
601 ;; warn for bare chords at start.
603 (define (has-request-chord elts)
604 (reduce (lambda (x y) (or x y)) #f
606 (equal? (ly:music-property x 'name) 'RequestChord))
609 (define-public (ly:music-message music msg)
610 (let ((ip (ly:music-property music 'origin)))
611 (if (ly:input-location? ip)
612 (ly:input-message ip msg)
615 (define (check-start-chords music)
616 "Check music expression for a Simultaneous_music containing notes\n(ie. Request_chords),
617 without context specification. Called from parser."
618 (let ((es (ly:music-property music 'elements))
619 (e (ly:music-property music 'element))
620 (name (ly:music-property music 'name)))
621 (cond ((equal? name "Context_specced_music") #t)
622 ((equal? name "Simultaneous_music")
623 (if (has-request-chord es)
624 (ly:music-message music "Starting score with a chord.\nInsert an explicit \\context before chord")
625 (map check-start-chords es)))
626 ((equal? name "SequentialMusic")
628 (check-start-chords (car es))))
629 (else (if (ly:music? e) (check-start-chords e)))))
634 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
636 ;; setting stuff for grace context.
639 (define (vector-extend v x)
640 "Make a new vector consisting of V, with X added to the end."
641 (let* ((n (vector-length v))
642 (nv (make-vector (+ n 1) '())))
643 (vector-move-left! v 0 n nv 0)
647 (define (vector-map f v)
648 "Map F over V. This function returns nothing."
649 (do ((n (vector-length v))
652 (f (vector-ref v i))))
654 (define (vector-reverse-map f v)
655 "Map F over V, N to 0 order. This function returns nothing."
656 (do ((i (- (vector-length v) 1) (- i 1)))
658 (f (vector-ref v i))))
660 ;; TODO: make a remove-grace-property too.
661 (define-public (add-grace-property context-name grob sym val)
662 "Set SYM=VAL for GROB in CONTEXT-NAME. "
663 (define (set-prop context)
664 (let* ((where (ly:context-property-where-defined context 'graceSettings))
665 (current (ly:context-property where 'graceSettings))
666 (new-settings (append current
667 (list (list context-name grob sym val)))))
668 (ly:context-set-property! where 'graceSettings new-settings)))
669 (ly:export (context-spec-music (make-apply-context set-prop) 'Voice)))
673 (defmacro-public def-grace-function (start stop)
674 `(define-music-function (parser location music) (ly:music?)
675 (make-music 'GraceMusic
677 'element (make-music 'SequentialMusic
678 'elements (list (ly:music-deep-copy ,start)
680 (ly:music-deep-copy ,stop))))))
682 (defmacro-public define-music-function (args signature . body)
683 "Helper macro for `ly:make-music-function'.
685 (define-music-function (parser location arg1 arg2 ...) (arg1-type? arg2-type? ...)
688 `(ly:make-music-function (list ,@signature)
693 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
695 (define-public (cue-substitute quote-music)
696 "Must happen after quote-substitute."
698 (if (vector? (ly:music-property quote-music 'quoted-events))
699 (let* ((dir (ly:music-property quote-music 'quoted-voice-direction))
700 (main-voice (if (eq? 1 dir) 1 0))
701 (cue-voice (if (eq? 1 dir) 0 1))
702 (main-music (ly:music-property quote-music 'element))
703 (return-value quote-music))
705 (if (or (eq? 1 dir) (eq? -1 dir))
707 ;; if we have stem dirs, change both quoted and main music
708 ;; to have opposite stems.
712 ;; cannot context-spec Quote-music, since context
713 ;; for the quotes is determined in the iterator.
714 (make-sequential-music
716 (context-spec-music (make-voice-props-set cue-voice) 'CueVoice "cue")
718 (context-spec-music (make-voice-props-revert) 'CueVoice "cue"))))
720 (make-sequential-music
722 (make-voice-props-set main-voice)
724 (make-voice-props-revert))))
725 (set! (ly:music-property quote-music 'element) main-music)))
730 (define-public ((quote-substitute quote-tab) music)
731 (let* ((quoted-name (ly:music-property music 'quoted-music-name))
732 (quoted-vector (if (string? quoted-name)
733 (hash-ref quote-tab quoted-name #f)
736 (if (string? quoted-name)
737 (if (vector? quoted-vector)
738 (set! (ly:music-property music 'quoted-events) quoted-vector)
739 (ly:warning (_ "can't find quoted music `~S'" quoted-name))))
743 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
744 ;; switch it on here, so parsing and init isn't checked (too slow!)
746 ;; automatic music transformations.
748 (define (switch-on-debugging m)
749 (if (defined? 'set-debug-cell-accesses!)
750 (set-debug-cell-accesses! 15000))
753 (define (music-check-error music)
756 (if (and (ly:music? m)
757 (eq? (ly:music-property m 'error-found) #t))
760 (for-each signal (ly:music-property music 'elements))
761 (signal (ly:music-property music 'element))
764 (set! (ly:music-property music 'error-found) #t))
767 (define (precompute-music-length music)
768 (set! (ly:music-property music 'length)
769 (ly:music-length music))
772 (define (skip-to-last music parser)
776 << { \\set skipTypesetting = ##t
777 LENGTHOF(\\showLastLength)
778 \\set skipTypesetting = ##t }
784 ((show-last (ly:parser-lookup parser 'showLastLength)))
786 (if (ly:music? show-last)
788 ((orig-length (ly:music-length music))
789 (skip-length (ly:moment-sub orig-length (ly:music-length show-last))))
791 (make-simultaneous-music
793 (make-sequential-music
795 (context-spec-music (make-property-set 'skipTypesetting #t) 'Score)
796 (make-music 'SkipMusic 'duration
797 (ly:make-duration 0 0
798 (ly:moment-main-numerator skip-length)
799 (ly:moment-main-denominator skip-length)))
800 (context-spec-music (make-property-set 'skipTypesetting #f) 'Score)))
805 (define-public toplevel-music-functions
807 (lambda (music parser) (voicify-music music))
808 (lambda (x parser) (music-map glue-mm-rest-texts x))
809 (lambda (x parser) (music-map music-check-error x))
810 (lambda (x parser) (music-map precompute-music-length x))
811 (lambda (music parser)
813 (music-map (quote-substitute (ly:parser-lookup parser 'musicQuotes)) music))
815 ;; switch-on-debugging
816 (lambda (x parser) (music-map cue-substitute x))
819 (skip-to-last x parser)
825 (define (apply-durations lyric-music durations)
826 (define (apply-duration music)
827 (if (and (not (equal? (ly:music-length music) ZERO-MOMENT))
828 (ly:duration? (ly:music-property music 'duration)))
830 (set! (ly:music-property music 'duration) (car durations))
831 (set! durations (cdr durations)))))
833 (music-map apply-duration lyric-music))
836 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
839 (define-public ((add-balloon-text object-name text off) grob orig-context cur-context)
840 "Usage: see input/regression/balloon.ly "
841 (let* ((meta (ly:grob-property grob 'meta))
842 (cb (ly:grob-property-data grob 'stencil))
843 (nm (if (pair? meta) (cdr (assoc 'name meta)) "nonexistant")))
844 (if (and (equal? nm object-name)
847 (ly:grob-set-property! grob 'stencil ly:balloon-interface::print)
848 (set! (ly:grob-property grob 'original-stencil) cb)
849 (set! (ly:grob-property grob 'balloon-text) text)
850 (set! (ly:grob-property grob 'balloon-text-offset) off)
851 (set! (ly:grob-property grob 'balloon-text-props) '((font-family . roman)))))))
853 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
856 (define-public (set-accidentals-properties extra-natural
860 (make-sequential-music
861 (append (if (boolean? extra-natural)
862 (list (make-property-set 'extraNatural extra-natural))
864 (list (make-property-set 'autoAccidentals auto-accs)
865 (make-property-set 'autoCautionaries auto-cauts))))
868 (define-public (set-accidental-style style . rest)
869 "Set accidental style to STYLE. Optionally takes a context argument,
870 e.g. 'Staff or 'Voice. The context defaults to Voice, except for piano styles, which
871 use GrandStaff as a context. "
872 (let ((context (if (pair? rest)
874 (pcontext (if (pair? rest)
875 (car rest) 'GrandStaff)))
878 ;; accidentals as they were common in the 18th century.
879 ((equal? style 'default)
880 (set-accidentals-properties #t '(Staff (same-octave . 0))
882 ;; accidentals from one voice do NOT get cancelled in other voices
883 ((equal? style 'voice)
884 (set-accidentals-properties #t '(Voice (same-octave . 0))
886 ;; accidentals as suggested by Kurt Stone, Music Notation in the 20th century.
887 ;; This includes all the default accidentals, but accidentals also needs cancelling
888 ;; in other octaves and in the next measure.
889 ((equal? style 'modern)
890 (set-accidentals-properties #f '(Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
892 ;; the accidentals that Stone adds to the old standard as cautionaries
893 ((equal? style 'modern-cautionary)
894 (set-accidentals-properties #f '(Staff (same-octave . 0))
895 '(Staff (any-octave . 0) (same-octave . 1))
897 ;; Multivoice accidentals to be read both by musicians playing one voice
898 ;; and musicians playing all voices.
899 ;; Accidentals are typeset for each voice, but they ARE cancelled across voices.
900 ((equal? style 'modern-voice)
901 (set-accidentals-properties #f
902 '(Voice (same-octave . 0) (any-octave . 0) (same-octave . 1)
903 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
906 ;; same as modernVoiceAccidental eccept that all special accidentals are typeset
908 ((equal? style 'modern-voice-cautionary)
909 (set-accidentals-properties #f
910 '(Voice (same-octave . 0))
911 '(Voice (any-octave . 0) (same-octave . 1)
912 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
914 ;; stone's suggestions for accidentals on grand staff.
915 ;; Accidentals are cancelled across the staves in the same grand staff as well
916 ((equal? style 'piano)
917 (set-accidentals-properties #f
918 '(Staff (same-octave . 0)
919 (any-octave . 0) (same-octave . 1)
920 GrandStaff (any-octave . 0) (same-octave . 1))
923 ((equal? style 'piano-cautionary)
924 (set-accidentals-properties #f
925 '(Staff (same-octave . 0))
926 '(Staff (any-octave . 0) (same-octave . 1)
927 GrandStaff (any-octave . 0) (same-octave . 1))
929 ;; do not set localKeySignature when a note alterated differently from
930 ;; localKeySignature is found.
931 ;; Causes accidentals to be printed at every note instead of
932 ;; remembered for the duration of a measure.
933 ;; accidentals not being remembered, causing accidentals always to be typeset relative to the time signature
934 ((equal? style 'forget)
935 (set-accidentals-properties '()
936 '(Staff (same-octave . -1))
938 ;; Do not reset the key at the start of a measure. Accidentals will be
939 ;; printed only once and are in effect until overridden, possibly many
941 ((equal? style 'no-reset)
942 (set-accidentals-properties '()
943 '(Staff (same-octave . #t))
947 (ly:warning (_ "unknown accidental style: ~S" style))
948 (make-sequential-music '()))))))
950 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
952 (define-public (skip-of-length mus)
953 "Create a skip of exactly the same length as MUS."
957 'duration (ly:make-duration 0 0))))
959 (make-event-chord (list (ly:music-compress skip (ly:music-length mus))))))
961 (define-public (mmrest-of-length mus)
962 "Create a mmrest of exactly the same length as MUS."
965 (make-multi-measure-rest
966 (ly:make-duration 0 0) '())))
967 (ly:music-compress skip (ly:music-length mus))
970 (define-public (pitch-of-note event-chord)
973 ((evs (filter (lambda (x) (memq 'note-event (ly:music-property x 'types)))
974 (ly:music-property event-chord 'elements))))
977 (ly:music-property (car evs) 'pitch)