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!))
19 (define-safe-public (music-is-of-type? mus type)
20 "Does @code{mus} belong to the music class @code{type}?"
21 (memq type (ly:music-property mus 'types)))
24 (define-public ly:grob-property
25 (make-procedure-with-setter ly:grob-property
26 ly:grob-set-property!))
28 (define-public ly:prob-property
29 (make-procedure-with-setter ly:prob-property
30 ly:prob-set-property!))
32 (define-public (music-map function music)
33 "Apply @var{function} to @var{music} and all of the music it contains.
35 First it recurses over the children, then the function is applied to MUSIC.
37 (let ((es (ly:music-property music 'elements))
38 (e (ly:music-property music 'element)))
39 (set! (ly:music-property music 'elements)
40 (map (lambda (y) (music-map function y)) es))
42 (set! (ly:music-property music 'element)
43 (music-map function e)))
46 (define-public (music-filter pred? music)
47 "Filter out music expressions that do not satisfy PRED."
49 (define (inner-music-filter pred? music)
51 (let* ((es (ly:music-property music 'elements))
52 (e (ly:music-property music 'element))
53 (as (ly:music-property music 'articulations))
54 (filtered-as (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) as)))
55 (filtered-e (if (ly:music? e)
56 (inner-music-filter pred? e)
58 (filtered-es (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) es))))
59 (set! (ly:music-property music 'element) filtered-e)
60 (set! (ly:music-property music 'elements) filtered-es)
61 (set! (ly:music-property music 'articulations) filtered-as)
62 ;; if filtering emptied the expression, we remove it completely.
63 (if (or (not (pred? music))
64 (and (eq? filtered-es '()) (not (ly:music? e))
65 (or (not (eq? es '()))
70 (set! music (inner-music-filter pred? music))
73 (make-music 'Music))) ;must return music.
75 (define-public (display-music music)
76 "Display music, not done with music-map for clarity of presentation."
79 (let ((es (ly:music-property music 'elements))
80 (e (ly:music-property music 'element)))
81 (display (ly:music-mutable-properties music))
83 (begin (display "\nElements: {\n")
84 (map display-music es)
94 ;;; A scheme music pretty printer
96 (define (markup-expression->make-markup markup-expression)
97 "Transform `markup-expression' into an equivalent, hopefuly readable, scheme expression.
99 \\markup \\bold \\italic hello
101 (markup #:line (#:bold (#:italic (#:simple \"hello\"))))"
102 (define (proc->command-keyword proc)
103 "Return a keyword, eg. `#:bold', from the `proc' function, eg. #<procedure bold-markup (layout props arg)>"
104 (let ((cmd-markup (symbol->string (procedure-name proc))))
105 (symbol->keyword (string->symbol (substring cmd-markup 0 (- (string-length cmd-markup)
106 (string-length "-markup")))))))
107 (define (transform-arg arg)
108 (cond ((and (pair? arg) (markup? (car arg))) ;; a markup list
109 (apply append (map inner-markup->make-markup arg)))
110 ((and (not (string? arg)) (markup? arg)) ;; a markup
111 (inner-markup->make-markup arg))
114 (define (inner-markup->make-markup mrkup)
115 (let ((cmd (proc->command-keyword (car mrkup)))
116 (args (map transform-arg (cdr mrkup))))
119 (if (string? markup-expression)
121 `(markup ,@(inner-markup->make-markup markup-expression))))
123 (define-public (music->make-music obj)
124 "Generate a expression that, once evaluated, may return an object equivalent to `obj',
125 that is, for a music expression, a (make-music ...) form."
126 (cond (;; markup expression
128 (markup-expression->make-markup obj))
132 ',(ly:music-property obj 'name)
133 ,@(apply append (map (lambda (prop)
135 ,(music->make-music (cdr prop))))
136 (remove (lambda (prop)
137 (eqv? (car prop) 'origin))
138 (ly:music-mutable-properties obj))))))
141 `(ly:make-moment ,(ly:moment-main-numerator obj)
142 ,(ly:moment-main-denominator obj)
143 ,(ly:moment-grace-numerator obj)
144 ,(ly:moment-grace-denominator obj)))
147 `(ly:make-duration ,(ly:duration-log obj)
148 ,(ly:duration-dot-count obj)
149 ,(car (ly:duration-factor obj))
150 ,(cdr (ly:duration-factor obj))))
153 `(ly:make-pitch ,(ly:pitch-octave obj)
154 ,(ly:pitch-notename obj)
155 ,(ly:pitch-alteration obj)))
158 (or (procedure-name obj) obj))
159 (;; a symbol (avoid having an unquoted symbol)
162 (;; an empty list (avoid having an unquoted empty list)
167 `(list ,@(map music->make-music obj)))
170 `(cons ,(music->make-music (car obj))
171 ,(music->make-music (cdr obj))))
175 (use-modules (ice-9 pretty-print))
176 (define*-public (display-scheme-music obj #:optional (port (current-output-port)))
177 "Displays `obj', typically a music expression, in a friendly fashion,
178 which often can be read back in order to generate an equivalent expression.
182 (pretty-print (music->make-music obj) port)
186 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
188 (define-public (shift-one-duration-log music shift dot)
189 " add SHIFT to duration-log of 'duration in music and optionally
190 a dot to any note encountered. This scales the music up by a factor
191 2^shift * (2 - (1/2)^dot)"
192 (let ((d (ly:music-property music 'duration)))
194 (let* ((cp (ly:duration-factor d))
195 (nd (ly:make-duration (+ shift (ly:duration-log d))
196 (+ dot (ly:duration-dot-count d))
199 (set! (ly:music-property music 'duration) nd)))
202 (define-public (shift-duration-log music shift dot)
203 (music-map (lambda (x) (shift-one-duration-log x shift dot))
206 (define-public (make-repeat name times main alts)
207 "create a repeat music expression, with all properties initialized properly"
208 (let ((talts (if (< times (length alts))
210 (ly:warning (_ "More alternatives than repeats. Junking excess alternatives"))
213 (r (make-repeated-music name)))
214 (set! (ly:music-property r 'element) main)
215 (set! (ly:music-property r 'repeat-count) (max times 1))
216 (set! (ly:music-property r 'elements) talts)
217 (if (equal? name "tremolo")
218 (let* ((dot? (zero? (modulo times 3)))
221 (quotient (* times 2) 3)
223 (shift (- (ly:intlog2 mult))))
225 (if (memq 'sequential-music (ly:music-property main 'types))
226 ;; \repeat "tremolo" { c4 d4 }
227 (let ((children (length (ly:music-property main 'elements))))
228 (if (not (= children 2))
229 (ly:warning (_ "expecting 2 elements for chord tremolo, found ~a") children))
230 (ly:music-compress r (ly:make-moment 1 children))
231 (shift-duration-log r (1- shift) dots))
232 ;; \repeat "tremolo" c4
233 (shift-duration-log r shift dots)))
236 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
239 (define-public (note-to-cluster music)
240 "Replace NoteEvents by ClusterNoteEvents."
241 (if (eq? (ly:music-property music 'name) 'NoteEvent)
242 (make-music 'ClusterNoteEvent
243 'pitch (ly:music-property music 'pitch)
244 'duration (ly:music-property music 'duration))
247 (define-public (notes-to-clusters music)
248 (music-map note-to-cluster music))
250 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
253 (define-public (unfold-repeats music)
255 This function replaces all repeats with unfold repeats. "
257 (let ((es (ly:music-property music 'elements))
258 (e (ly:music-property music 'element))
260 (if (memq 'repeated-music (ly:music-property music 'types))
262 ((props (ly:music-mutable-properties music))
263 (old-name (ly:music-property music 'name))
264 (flattened (flatten-alist props)))
266 (set! music (apply make-music (cons 'UnfoldedRepeatedMusic
269 (if (equal? old-name 'TremoloRepeatedMusic)
270 (let* ((seq-arg? (memq 'sequential-music
271 (ly:music-property e 'types)))
272 (count (ly:music-property music 'repeat-count))
273 (dot-shift (if (= 0 (remainder count 3))
277 (set! count (* 2 (quotient count 3))))
279 (shift-duration-log music (+ (if seq-arg? 1 0)
280 (ly:intlog2 count)) dot-shift)
283 (ly:music-compress e (ly:make-moment (length (ly:music-property
284 e 'elements)) 1)))))))
288 (set! (ly:music-property music 'elements)
289 (map unfold-repeats es)))
291 (set! (ly:music-property music 'element)
295 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
296 ;; property setting music objs.
298 (define-public (make-grob-property-set grob gprop val)
299 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
300 i.e. this is not an override"
301 (make-music 'OverrideProperty
307 (define-public (make-grob-property-override grob gprop val)
308 "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
309 i.e. this is not an override"
310 (make-music 'OverrideProperty
315 (define-public (make-grob-property-revert grob gprop)
316 "Revert the grob property GPROP for GROB."
317 (make-music 'RevertProperty
319 'grob-property gprop))
321 (define direction-polyphonic-grobs
322 '(Stem Tie Rest Slur PhrasingSlur Script TextScript Dots DotColumn Fingering))
324 (define-safe-public (make-voice-props-set n)
325 (make-sequential-music
327 (map (lambda (x) (make-grob-property-set x 'direction
329 direction-polyphonic-grobs)
331 (make-grob-property-set 'NoteColumn 'horizontal-shift (quotient n 2))
332 (make-grob-property-set 'MultiMeasureRest 'staff-position (if (odd? n) -4 4))))))
334 (define-safe-public (make-voice-props-revert)
335 (make-sequential-music
337 (map (lambda (x) (make-grob-property-revert x 'direction))
338 direction-polyphonic-grobs)
339 (list (make-grob-property-revert 'NoteColumn 'horizontal-shift))
340 (list (make-grob-property-revert 'MultiMeasureRest 'staff-position)))))
343 (define-safe-public (context-spec-music m context #:optional id)
344 "Add \\context CONTEXT = ID to M. "
345 (let ((cm (make-music 'ContextSpeccedMusic
347 'context-type context)))
349 (set! (ly:music-property cm 'context-id) id))
352 (define-public (descend-to-context m context)
353 "Like context-spec-music, but only descending. "
354 (let ((cm (context-spec-music m context)))
355 (ly:music-set-property! cm 'descend-only #t)
358 (define-public (make-non-relative-music mus)
359 (make-music 'UnrelativableMusic
362 (define-public (make-apply-context func)
363 (make-music 'ApplyContext
366 (define-public (make-sequential-music elts)
367 (make-music 'SequentialMusic
370 (define-public (make-simultaneous-music elts)
371 (make-music 'SimultaneousMusic
374 (define-safe-public (make-event-chord elts)
375 (make-music 'EventChord
378 (define-public (make-skip-music dur)
379 (make-music 'SkipMusic
382 (define-public (make-grace-music music)
383 (make-music 'GraceMusic
389 (define-public (make-multi-measure-rest duration location)
390 (make-music 'MultiMeasureRestMusicGroup
392 'elements (list (make-music 'BarCheck
394 (make-event-chord (list (make-music 'MultiMeasureRestEvent
396 'duration duration)))
397 (make-music 'BarCheck
400 (define-public (glue-mm-rest-texts music)
401 "Check if we have R1*4-\\markup { .. }, and if applicable convert to
402 a property set for MultiMeasureRestNumber."
403 (define (script-to-mmrest-text script-music)
404 "Extract 'direction and 'text from SCRIPT-MUSIC, and transform MultiMeasureTextEvent"
405 (let ((dir (ly:music-property script-music 'direction))
406 (p (make-music 'MultiMeasureTextEvent
407 'text (ly:music-property script-music 'text))))
409 (set! (ly:music-property p 'direction) dir))
412 (if (eq? (ly:music-property music 'name) 'MultiMeasureRestMusicGroup)
413 (let* ((text? (lambda (x) (memq 'script-event (ly:music-property x 'types))))
414 (event? (lambda (x) (memq 'event (ly:music-property x 'types))))
415 (group-elts (ly:music-property music 'elements))
421 (map script-to-mmrest-text (filter text? group-elts)))
423 (remove text? group-elts))
425 (set! events (filter event? group-elts))
426 (set! others (remove event? group-elts))
428 (if (or (pair? texts) (pair? events))
429 (set! (ly:music-property music 'elements)
430 (cons (make-event-chord
431 (append texts events))
439 (define-public (make-property-set sym val)
440 (make-music 'PropertySet
444 (define-public (make-ottava-set octavation)
445 (let ((m (make-music 'ApplyContext)))
446 (define (ottava-modify context)
447 "Either reset middleCPosition to the stored original, or remember
448 old middleCPosition, add OCTAVATION to middleCPosition, and set
449 OTTAVATION to `8va', or whatever appropriate."
450 (if (number? (ly:context-property context 'middleCPosition))
452 (let ((where (ly:context-property-where-defined context 'middleCPosition))
453 (oc0 (ly:context-property context 'originalCentralCPosition)))
454 (ly:context-set-property! context 'middleCPosition oc0)
455 (ly:context-unset-property where 'originalCentralCPosition)
456 (ly:context-unset-property where 'ottavation))
457 (let* ((where (ly:context-property-where-defined context 'middleCPosition))
458 (c0 (ly:context-property context 'middleCPosition))
459 (new-c0 (+ c0 (* -7 octavation)))
460 (string (cdr (assoc octavation '((2 . "15ma")
464 (-2 . "15ma bassa"))))))
465 (ly:context-set-property! context 'middleCPosition new-c0)
466 (ly:context-set-property! context 'originalCentralCPosition c0)
467 (ly:context-set-property! context 'ottavation string)))))
468 (set! (ly:music-property m 'procedure) ottava-modify)
469 (context-spec-music m 'Staff)))
471 (define-public (set-octavation ottavation)
472 (ly:export (make-ottava-set ottavation)))
474 (define-public (make-time-signature-set num den . rest)
475 "Set properties for time signature NUM/DEN. Rest can contain a list
478 (define (standard-beat-grouping num den)
480 "Some standard subdivisions for time signatures."
482 ((key (cons num den))
483 (entry (assoc key '(((6 . 8) . (3 3))
486 ((12 . 8) . (3 3 3 3))
494 (let* ((set1 (make-property-set 'timeSignatureFraction (cons num den)))
495 (beat (ly:make-moment 1 den))
496 (len (ly:make-moment num den))
497 (set2 (make-property-set 'beatLength beat))
498 (set3 (make-property-set 'measureLength len))
499 (set4 (make-property-set 'beatGrouping (if (pair? rest)
501 (standard-beat-grouping num den))))
502 (basic (list set1 set2 set3 set4)))
504 (context-spec-music (make-sequential-music basic) 'Timing) 'Score)))
506 (define-public (make-mark-set label)
507 "Make the music for the \\mark command."
508 (let* ((set (if (integer? label)
509 (context-spec-music (make-property-set 'rehearsalMark label)
512 (ev (make-music 'MarkEvent))
513 (ch (make-event-chord (list ev))))
515 (make-sequential-music (list set ch))
517 (set! (ly:music-property ev 'label) label)
520 (define-public (set-time-signature num den . rest)
521 (ly:export (apply make-time-signature-set `(,num ,den . ,rest))))
523 (define-safe-public (make-articulation name)
524 (make-music 'ArticulationEvent
525 'articulation-type name))
527 (define-public (make-lyric-event string duration)
528 (make-music 'LyricEvent
532 (define-safe-public (make-span-event type spandir)
534 'span-direction spandir))
536 (define-public (set-mus-properties! m alist)
537 "Set all of ALIST as properties of M."
540 (set! (ly:music-property m (caar alist)) (cdar alist))
541 (set-mus-properties! m (cdr alist)))))
543 (define-public (music-separator? m)
545 (let ((ts (ly:music-property m 'types)))
546 (memq 'separator ts)))
548 ;;; splitting chords into voices.
549 (define (voicify-list lst number)
550 "Make a list of Musics.
552 voicify-list :: [ [Music ] ] -> number -> [Music]
553 LST is a list music-lists.
555 NUMBER is 0-base, i.e. Voice=1 (upstems) has number 0.
559 (cons (context-spec-music
560 (make-sequential-music
561 (list (make-voice-props-set number)
562 (make-simultaneous-music (car lst))))
563 'Voice (number->string (1+ number)))
564 (voicify-list (cdr lst) (1+ number)))))
566 (define (voicify-chord ch)
567 "Split the parts of a chord into different Voices using separator"
568 (let ((es (ly:music-property ch 'elements)))
569 (set! (ly:music-property ch 'elements)
570 (voicify-list (split-list es music-separator?) 0))
573 (define-public (voicify-music m)
574 "Recursively split chords that are separated with \\ "
575 (if (not (ly:music? m))
576 (ly:error (_ "music expected: ~S") m))
577 (let ((es (ly:music-property m 'elements))
578 (e (ly:music-property m 'element)))
581 (set! (ly:music-property m 'elements) (map voicify-music es)))
583 (set! (ly:music-property m 'element) (voicify-music e)))
584 (if (and (equal? (ly:music-property m 'name) 'SimultaneousMusic)
585 (reduce (lambda (x y ) (or x y)) #f (map music-separator? es)))
586 (set! m (context-spec-music (voicify-chord m) 'Staff)))
589 (define-public (empty-music)
590 (ly:export (make-music 'Music)))
593 ; Make a function that checks score element for being of a specific type.
594 (define-public (make-type-checker symbol)
597 ;;(eq? #t (ly:grob-property elt symbol))
598 (not (eq? #f (memq symbol (ly:grob-property elt 'interfaces))))))
600 (define-public ((outputproperty-compatibility func sym val) grob g-context ao-context)
602 (set! (ly:grob-property grob sym) val)))
605 (define-public ((set-output-property grob-name symbol val) grob grob-c context)
608 \\applyoutput #(set-output-property 'Clef 'extra-offset '(0 . 1))
611 (let ((meta (ly:grob-property grob 'meta)))
612 (if (equal? (cdr (assoc 'name meta)) grob-name)
613 (set! (ly:grob-property grob symbol) val))))
617 (define-public (smart-bar-check n)
618 "Make a bar check that checks for a specific bar number.
620 (let ((m (make-music 'ApplyContext)))
622 (let* ((bn (ly:context-property tr 'currentBarNumber)))
626 ;; FIXME: uncomprehensable message
627 (_ "Bar check failed. Expect to be at ~a, instead at ~a")
629 (set! (ly:music-property m 'procedure) checker)
633 (define-public (skip->rest mus)
635 "Replace MUS by RestEvent of the same duration if it is a
636 SkipEvent. Useful for extracting parts from crowded scores"
638 (if (equal? (ly:music-property mus 'name) 'SkipEvent)
639 (make-music 'RestEvent 'duration (ly:music-property mus 'duration))
643 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
644 ;; warn for bare chords at start.
646 (define (has-request-chord elts)
647 (reduce (lambda (x y) (or x y)) #f
649 (equal? (ly:music-property x 'name) 'RequestChord))
652 (define-public (ly:music-message music msg)
653 (let ((ip (ly:music-property music 'origin)))
654 (if (ly:input-location? ip)
655 (ly:input-message ip msg)
658 (define (check-start-chords music)
659 "Check music expression for a Simultaneous_music containing notes\n(ie. Request_chords),
660 without context specification. Called from parser."
661 (let ((es (ly:music-property music 'elements))
662 (e (ly:music-property music 'element))
663 (name (ly:music-property music 'name)))
664 (cond ((equal? name "Context_specced_music") #t)
665 ((equal? name "Simultaneous_music")
666 (if (has-request-chord es)
667 (ly:music-message music "Starting score with a chord.\nInsert an explicit \\context before chord")
668 (map check-start-chords es)))
669 ((equal? name "SequentialMusic")
671 (check-start-chords (car es))))
672 (else (if (ly:music? e) (check-start-chords e)))))
677 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
679 ;; setting stuff for grace context.
682 (define (vector-extend v x)
683 "Make a new vector consisting of V, with X added to the end."
684 (let* ((n (vector-length v))
685 (nv (make-vector (+ n 1) '())))
686 (vector-move-left! v 0 n nv 0)
690 (define (vector-map f v)
691 "Map F over V. This function returns nothing."
692 (do ((n (vector-length v))
695 (f (vector-ref v i))))
697 (define (vector-reverse-map f v)
698 "Map F over V, N to 0 order. This function returns nothing."
699 (do ((i (- (vector-length v) 1) (- i 1)))
701 (f (vector-ref v i))))
703 ;; TODO: make a remove-grace-property too.
704 (define-public (add-grace-property context-name grob sym val)
705 "Set SYM=VAL for GROB in CONTEXT-NAME. "
706 (define (set-prop context)
707 (let* ((where (ly:context-property-where-defined context 'graceSettings))
708 (current (ly:context-property where 'graceSettings))
709 (new-settings (append current
710 (list (list context-name grob sym val)))))
711 (ly:context-set-property! where 'graceSettings new-settings)))
712 (ly:export (context-spec-music (make-apply-context set-prop) 'Voice)))
716 (defmacro-public def-grace-function (start stop)
717 `(define-music-function (parser location music) (ly:music?)
718 (make-music 'GraceMusic
720 'element (make-music 'SequentialMusic
721 'elements (list (ly:music-deep-copy ,start)
723 (ly:music-deep-copy ,stop))))))
725 (defmacro-public define-music-function (args signature . body)
726 "Helper macro for `ly:make-music-function'.
728 (define-music-function (parser location arg1 arg2 ...) (arg1-type? arg2-type? ...)
731 `(ly:make-music-function (list ,@signature)
736 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
738 (define-public (cue-substitute quote-music)
739 "Must happen after quote-substitute."
741 (if (vector? (ly:music-property quote-music 'quoted-events))
742 (let* ((dir (ly:music-property quote-music 'quoted-voice-direction))
743 (main-voice (if (eq? 1 dir) 1 0))
744 (cue-voice (if (eq? 1 dir) 0 1))
745 (main-music (ly:music-property quote-music 'element))
746 (return-value quote-music))
748 (if (or (eq? 1 dir) (eq? -1 dir))
750 ;; if we have stem dirs, change both quoted and main music
751 ;; to have opposite stems.
755 ;; cannot context-spec Quote-music, since context
756 ;; for the quotes is determined in the iterator.
757 (make-sequential-music
759 (context-spec-music (make-voice-props-set cue-voice) 'CueVoice "cue")
761 (context-spec-music (make-voice-props-revert) 'CueVoice "cue"))))
763 (make-sequential-music
765 (make-voice-props-set main-voice)
767 (make-voice-props-revert))))
768 (set! (ly:music-property quote-music 'element) main-music)))
773 (define-public ((quote-substitute quote-tab) music)
774 (let* ((quoted-name (ly:music-property music 'quoted-music-name))
775 (quoted-vector (if (string? quoted-name)
776 (hash-ref quote-tab quoted-name #f)
780 (if (string? quoted-name)
781 (if (vector? quoted-vector)
783 (set! (ly:music-property music 'quoted-events) quoted-vector)
784 (set! (ly:music-property music 'iterator-ctor)
785 ly:quote-iterator::constructor))
786 (ly:warning (_ "can't find quoted music `~S'" quoted-name))))
790 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
791 ;; switch it on here, so parsing and init isn't checked (too slow!)
793 ;; automatic music transformations.
795 (define (switch-on-debugging m)
796 (if (defined? 'set-debug-cell-accesses!)
797 (set-debug-cell-accesses! 15000))
800 (define (music-check-error music)
803 (if (and (ly:music? m)
804 (eq? (ly:music-property m 'error-found) #t))
807 (for-each signal (ly:music-property music 'elements))
808 (signal (ly:music-property music 'element))
811 (set! (ly:music-property music 'error-found) #t))
814 (define (precompute-music-length music)
815 (set! (ly:music-property music 'length)
816 (ly:music-length music))
819 (define (skip-to-last music parser)
823 << { \\set skipTypesetting = ##t
824 LENGTHOF(\\showLastLength)
825 \\set skipTypesetting = ##t }
831 ((show-last (ly:parser-lookup parser 'showLastLength)))
833 (if (ly:music? show-last)
835 ((orig-length (ly:music-length music))
836 (skip-length (ly:moment-sub orig-length (ly:music-length show-last))))
838 (make-simultaneous-music
840 (make-sequential-music
842 (context-spec-music (make-property-set 'skipTypesetting #t) 'Score)
843 (make-music 'SkipMusic 'duration
844 (ly:make-duration 0 0
845 (ly:moment-main-numerator skip-length)
846 (ly:moment-main-denominator skip-length)))
847 (context-spec-music (make-property-set 'skipTypesetting #f) 'Score)))
852 (define-public toplevel-music-functions
854 (lambda (music parser) (voicify-music music))
855 (lambda (x parser) (music-map glue-mm-rest-texts x))
856 (lambda (x parser) (music-map music-check-error x))
857 (lambda (x parser) (music-map precompute-music-length x))
858 (lambda (music parser)
860 (music-map (quote-substitute (ly:parser-lookup parser 'musicQuotes)) music))
862 ;; switch-on-debugging
863 (lambda (x parser) (music-map cue-substitute x))
866 (skip-to-last x parser)
873 (define (apply-durations lyric-music durations)
874 (define (apply-duration music)
875 (if (and (not (equal? (ly:music-length music) ZERO-MOMENT))
876 (ly:duration? (ly:music-property music 'duration)))
878 (set! (ly:music-property music 'duration) (car durations))
879 (set! durations (cdr durations)))))
881 (music-map apply-duration lyric-music))
884 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
887 (define-public ((add-balloon-text object-name text off) grob orig-context cur-context)
888 "Usage: see input/regression/balloon.ly "
889 (let* ((meta (ly:grob-property grob 'meta))
890 (cb (ly:grob-property-data grob 'stencil))
891 (nm (if (pair? meta) (cdr (assoc 'name meta)) "nonexistant")))
892 (if (and (equal? nm object-name)
895 (ly:grob-set-property! grob 'stencil ly:balloon-interface::print)
896 (set! (ly:grob-property grob 'original-stencil) cb)
897 (set! (ly:grob-property grob 'balloon-text) text)
898 (set! (ly:grob-property grob 'balloon-text-offset) off)
899 (set! (ly:grob-property grob 'balloon-text-props) '((font-family . roman)))))))
901 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
904 (define-public (set-accidentals-properties extra-natural
908 (make-sequential-music
909 (append (if (boolean? extra-natural)
910 (list (make-property-set 'extraNatural extra-natural))
912 (list (make-property-set 'autoAccidentals auto-accs)
913 (make-property-set 'autoCautionaries auto-cauts))))
916 (define-public (set-accidental-style style . rest)
917 "Set accidental style to STYLE. Optionally takes a context argument,
918 e.g. 'Staff or 'Voice. The context defaults to Voice, except for piano styles, which
919 use GrandStaff as a context. "
920 (let ((context (if (pair? rest)
922 (pcontext (if (pair? rest)
923 (car rest) 'GrandStaff)))
926 ;; accidentals as they were common in the 18th century.
927 ((equal? style 'default)
928 (set-accidentals-properties #t '(Staff (same-octave . 0))
930 ;; accidentals from one voice do NOT get cancelled in other voices
931 ((equal? style 'voice)
932 (set-accidentals-properties #t '(Voice (same-octave . 0))
934 ;; accidentals as suggested by Kurt Stone, Music Notation in the 20th century.
935 ;; This includes all the default accidentals, but accidentals also needs cancelling
936 ;; in other octaves and in the next measure.
937 ((equal? style 'modern)
938 (set-accidentals-properties #f '(Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
940 ;; the accidentals that Stone adds to the old standard as cautionaries
941 ((equal? style 'modern-cautionary)
942 (set-accidentals-properties #f '(Staff (same-octave . 0))
943 '(Staff (any-octave . 0) (same-octave . 1))
945 ;; Multivoice accidentals to be read both by musicians playing one voice
946 ;; and musicians playing all voices.
947 ;; Accidentals are typeset for each voice, but they ARE cancelled across voices.
948 ((equal? style 'modern-voice)
949 (set-accidentals-properties #f
950 '(Voice (same-octave . 0) (any-octave . 0) (same-octave . 1)
951 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
954 ;; same as modernVoiceAccidental eccept that all special accidentals are typeset
956 ((equal? style 'modern-voice-cautionary)
957 (set-accidentals-properties #f
958 '(Voice (same-octave . 0))
959 '(Voice (any-octave . 0) (same-octave . 1)
960 Staff (same-octave . 0) (any-octave . 0) (same-octave . 1))
962 ;; stone's suggestions for accidentals on grand staff.
963 ;; Accidentals are cancelled across the staves in the same grand staff as well
964 ((equal? style 'piano)
965 (set-accidentals-properties #f
966 '(Staff (same-octave . 0)
967 (any-octave . 0) (same-octave . 1)
968 GrandStaff (any-octave . 0) (same-octave . 1))
971 ((equal? style 'piano-cautionary)
972 (set-accidentals-properties #f
973 '(Staff (same-octave . 0))
974 '(Staff (any-octave . 0) (same-octave . 1)
975 GrandStaff (any-octave . 0) (same-octave . 1))
977 ;; do not set localKeySignature when a note alterated differently from
978 ;; localKeySignature is found.
979 ;; Causes accidentals to be printed at every note instead of
980 ;; remembered for the duration of a measure.
981 ;; accidentals not being remembered, causing accidentals always to be typeset relative to the time signature
982 ((equal? style 'forget)
983 (set-accidentals-properties '()
984 '(Staff (same-octave . -1))
986 ;; Do not reset the key at the start of a measure. Accidentals will be
987 ;; printed only once and are in effect until overridden, possibly many
989 ((equal? style 'no-reset)
990 (set-accidentals-properties '()
991 '(Staff (same-octave . #t))
995 (ly:warning (_ "unknown accidental style: ~S" style))
996 (make-sequential-music '()))))))
998 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1000 (define-public (skip-of-length mus)
1001 "Create a skip of exactly the same length as MUS."
1005 'duration (ly:make-duration 0 0))))
1007 (make-event-chord (list (ly:music-compress skip (ly:music-length mus))))))
1009 (define-public (mmrest-of-length mus)
1010 "Create a mmrest of exactly the same length as MUS."
1013 (make-multi-measure-rest
1014 (ly:make-duration 0 0) '())))
1015 (ly:music-compress skip (ly:music-length mus))
1018 (define-public (pitch-of-note event-chord)
1021 ((evs (filter (lambda (x) (memq 'note-event (ly:music-property x 'types)))
1022 (ly:music-property event-chord 'elements))))
1025 (ly:music-property (car evs) 'pitch)