1 ;;; define-music-display-methods.scm -- data for displaying music
2 ;;; expressions using LilyPond notation.
4 ;;; Copyright (C) 2005--2012 Nicolas Sceaux <nicolas.sceaux@free.fr>
7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
9 ;;; Display method implementation
12 (define-module (scm display-lily))
17 (define (scheme-expr->lily-string scm-arg)
18 (cond ((or (number? scm-arg)
21 (format #f "~s" scm-arg))
22 ((or (symbol? scm-arg)
24 (format #f "'~s" scm-arg))
27 (or (procedure-name scm-arg)
28 (with-output-to-string
30 (pretty-print (procedure-source scm-arg)))))))
33 (with-output-to-string
35 (display-scheme-music scm-arg)))))))
40 (define-public (markup->lily-string markup-expr)
41 "Return a string describing, in LilyPond syntax, the given markup
43 (define (proc->command proc)
44 (let ((cmd-markup (symbol->string (procedure-name proc))))
45 (substring cmd-markup 0 (- (string-length cmd-markup)
46 (string-length "-markup")))))
47 (define (arg->string arg)
50 ((markup? arg) ;; a markup
51 (markup->lily-string-aux arg))
52 ((and (pair? arg) (every markup? arg)) ;; a markup list
53 (format #f "{~{ ~a~}}" (map-in-order markup->lily-string-aux arg)))
54 (else ;; a scheme argument
55 (format #f "#~a" (scheme-expr->lily-string arg)))))
56 (define (markup->lily-string-aux expr)
59 (let ((cmd (car expr))
61 (if (eqv? cmd simple-markup) ;; a simple markup
62 (format #f "~s" (car args))
63 (format #f "\\~a~{ ~a~}"
65 (map-in-order arg->string args))))))
66 (cond ((string? markup-expr)
67 (format #f "~s" markup-expr))
68 ((eqv? (car markup-expr) simple-markup)
69 (format #f "~s" (second markup-expr)))
71 (format #f "\\markup ~a"
72 (markup->lily-string-aux markup-expr)))))
78 ;; It is a pity that there is no rassoc in Scheme.
79 (define* (rassoc item alist #:optional (test equal?))
80 (do ((alist alist (cdr alist))
82 ((or result (null? alist)) result)
83 (if (and (car alist) (test item (cdar alist)))
84 (set! result (car alist)))))
86 (define-public (note-name->lily-string ly-pitch parser)
87 ;; here we define a custom pitch= function, since we do not want to
88 ;; test whether octaves are also equal. (otherwise, we would be using equal?)
89 (define (pitch= pitch1 pitch2)
90 (and (= (ly:pitch-notename pitch1) (ly:pitch-notename pitch2))
91 (= (ly:pitch-alteration pitch1) (ly:pitch-alteration pitch2))))
92 (let ((result (rassoc ly-pitch (ly:parser-lookup parser 'pitchnames) pitch=)))
97 (define-public (octave->lily-string pitch)
98 (let ((octave (ly:pitch-octave pitch)))
100 (make-string (1+ octave) #\'))
102 (make-string (1- (* -1 octave)) #\,))
108 (define*-public (duration->lily-string ly-duration #:key (prev-duration (*previous-duration*))
109 (force-duration (*force-duration*))
110 (time-factor-numerator (*time-factor-numerator*))
111 (time-factor-denominator (*time-factor-denominator*)))
112 (let ((log2 (ly:duration-log ly-duration))
113 (dots (ly:duration-dot-count ly-duration))
114 (num+den (ly:duration-factor ly-duration)))
115 (if (or force-duration (not prev-duration) (not (equal? ly-duration prev-duration)))
116 (string-append (case log2
120 (else (number->string (expt 2 log2))))
121 (make-string dots #\.)
122 (let ((num? (not (or (= 1 (car num+den))
123 (and time-factor-numerator
124 (= (car num+den) time-factor-numerator)))))
125 (den? (not (or (= 1 (cdr num+den))
126 (and time-factor-denominator
127 (= (cdr num+den) time-factor-denominator))))))
129 (format #f "*~a/~a" (car num+den) (cdr num+den)))
131 (format #f "*~a" (car num+den)))
139 (define (post-event? m)
140 (music-is-of-type? m 'post-event))
142 (define* (event-direction->lily-string event #:optional (required #t))
143 (let ((direction (ly:music-property event 'direction)))
144 (cond ((or (not direction) (null? direction) (= CENTER direction))
145 (if required "-" ""))
146 ((= UP direction) "^")
147 ((= DOWN direction) "_")
150 (define-macro (define-post-event-display-method type vars direction-required str)
151 `(define-display-method ,type ,vars
153 (event-direction->lily-string ,(car vars) ,direction-required)
156 (define-macro (define-span-event-display-method type vars direction-required str-start str-stop)
157 `(define-display-method ,type ,vars
159 (event-direction->lily-string ,(car vars) ,direction-required)
160 (if (= START (ly:music-property ,(car vars) 'span-direction))
164 (define-display-method HyphenEvent (event parser)
166 (define-display-method ExtenderEvent (event parser)
168 (define-display-method TieEvent (event parser)
170 (define-display-method BeamForbidEvent (event parser)
172 (define-display-method StringNumberEvent (event parser)
173 (format #f "\\~a" (ly:music-property event 'string-number)))
176 (define-display-method TremoloEvent (event parser)
177 (let ((tremolo-type (ly:music-property event 'tremolo-type)))
178 (format #f ":~a" (if (= 0 tremolo-type)
182 (define-post-event-display-method ArticulationEvent (event parser) #t
183 (let ((articulation (ly:music-property event 'articulation-type)))
184 (case (string->symbol articulation)
188 ((staccatissimo) "|")
192 (else (format #f "\\~a" articulation)))))
194 (define-post-event-display-method FingeringEvent (event parser) #t
195 (ly:music-property event 'digit))
197 (define-post-event-display-method TextScriptEvent (event parser) #t
198 (markup->lily-string (ly:music-property event 'text)))
200 (define-post-event-display-method MultiMeasureTextEvent (event parser) #t
201 (markup->lily-string (ly:music-property event 'text)))
203 (define-post-event-display-method BendAfterEvent (event parser) #t
204 (format #f "\\bendAfter #~a" (ly:music-property event 'delta-step)))
206 (define-post-event-display-method HarmonicEvent (event parser) #f "\\harmonic")
207 (define-post-event-display-method GlissandoEvent (event parser) #t "\\glissando")
208 (define-post-event-display-method ArpeggioEvent (event parser) #t "\\arpeggio")
209 (define-post-event-display-method AbsoluteDynamicEvent (event parser) #f
210 (format #f "\\~a" (ly:music-property event 'text)))
212 (define-post-event-display-method StrokeFingerEvent (event parser) #t
213 (format #f "\\rightHandFinger #~a" (ly:music-property event 'digit)))
215 (define-span-event-display-method BeamEvent (event parser) #f "[" "]")
216 (define-span-event-display-method SlurEvent (event parser) #f "(" ")")
217 (define-span-event-display-method CrescendoEvent (event parser) #f "\\<" "\\!")
218 (define-span-event-display-method DecrescendoEvent (event parser) #f "\\>" "\\!")
219 (define-span-event-display-method EpisemaEvent (event parser) #f "\\episemInitium" "\\episemFinis")
220 (define-span-event-display-method PhrasingSlurEvent (event parser) #f "\\(" "\\)")
221 (define-span-event-display-method SustainEvent (event parser) #f "\\sustainOn" "\\sustainOff")
222 (define-span-event-display-method SostenutoEvent (event parser) #f "\\sostenutoOn" "\\sostenutoOff")
223 (define-span-event-display-method TextSpanEvent (event parser) #f "\\startTextSpan" "\\stopTextSpan")
224 (define-span-event-display-method TrillSpanEvent (event parser) #f "\\startTrillSpan" "\\stopTrillSpan")
225 (define-span-event-display-method StaffSpanEvent (event parser) #f "\\startStaff" "\\stopStaff")
226 (define-span-event-display-method NoteGroupingEvent (event parser) #f "\\startGroup" "\\stopGroup")
227 (define-span-event-display-method UnaCordaEvent (event parser) #f "\\unaCorda" "\\treCorde")
233 (define-display-method GraceMusic (expr parser)
234 (format #f "\\grace ~a"
235 (music->lily-string (ly:music-property expr 'element) parser)))
237 ;; \acciaccatura \appoggiatura \grace
238 ;; TODO: it would be better to compare ?start and ?stop
239 ;; with startAppoggiaturaMusic and stopAppoggiaturaMusic,
240 ;; using a custom music equality predicate.
241 (define-extra-display-method GraceMusic (expr parser)
242 "Display method for appoggiatura."
243 (with-music-match (expr (music
250 ;; we check whether ?start and ?stop look like
251 ;; startAppoggiaturaMusic stopAppoggiaturaMusic
252 (and (with-music-match (?start (music
258 duration (ly:make-duration 0 0 0 1))
261 span-direction START))))))
263 (with-music-match (?stop (music
269 duration (ly:make-duration 0 0 0 1))
272 span-direction STOP))))))
273 (format #f "\\appoggiatura ~a" (music->lily-string ?music parser))))))
276 (define-extra-display-method GraceMusic (expr parser)
277 "Display method for acciaccatura."
278 (with-music-match (expr (music
285 ;; we check whether ?start and ?stop look like
286 ;; startAcciaccaturaMusic stopAcciaccaturaMusic
287 (and (with-music-match (?start (music
293 duration (ly:make-duration 0 0 0 1))
296 span-direction START)))
301 grob-property-path '(stroke-style)
305 (with-music-match (?stop (music
311 grob-property-path '(stroke-style)
317 duration (ly:make-duration 0 0 0 1))
320 span-direction STOP))))))
321 (format #f "\\acciaccatura ~a" (music->lily-string ?music parser))))))
323 (define-extra-display-method GraceMusic (expr parser)
324 "Display method for grace."
325 (with-music-match (expr (music
332 ;; we check whether ?start and ?stop look like
333 ;; startGraceMusic stopGraceMusic
334 (and (null? (ly:music-property ?start 'elements))
335 (null? (ly:music-property ?stop 'elements))
336 (format #f "\\grace ~a" (music->lily-string ?music parser)))))
342 (define-display-method SequentialMusic (seq parser)
343 (let ((force-line-break (and (*force-line-break*)
345 (> (length (ly:music-property seq 'elements))
346 (*max-element-number-before-break*))))
347 (elements (ly:music-property seq 'elements))
348 (chord? (make-music-type-predicate 'EventChord))
349 (cluster? (make-music-type-predicate 'ClusterNoteEvent))
350 (note? (make-music-type-predicate 'NoteEvent)))
351 (format #f "~a~a{~v%~v_~{~a~^ ~}~v%~v_}"
354 (any cluster? (ly:music-property e 'elements))))
358 (if (*explicit-mode*)
359 ;; if the sequence contains EventChord which contains figures ==> figuremode
360 ;; if the sequence contains EventChord which contains lyrics ==> lyricmode
361 ;; if the sequence contains EventChord which contains drum notes ==> drummode
362 (cond ((any (lambda (chord)
363 (any (make-music-type-predicate 'BassFigureEvent)
364 (ly:music-property chord 'elements)))
365 (filter chord? elements))
367 ((any (lambda (chord)
368 (any (make-music-type-predicate 'LyricEvent)
369 (ly:music-property chord 'elements)))
370 (filter chord? elements))
372 ((any (lambda (chord)
375 (not (null? (ly:music-property event 'drum-type)))))
376 (ly:music-property chord 'elements)))
377 (filter chord? elements))
379 (else ;; TODO: other modes?
382 (if force-line-break 1 0)
383 (if force-line-break (+ 2 (*indent*)) 1)
384 (parameterize ((*indent* (+ 2 (*indent*))))
385 (map-in-order (lambda (music)
386 (music->lily-string music parser))
388 (if force-line-break 1 0)
389 (if force-line-break (*indent*) 1))))
391 (define-display-method SimultaneousMusic (sim parser)
392 (parameterize ((*indent* (+ 3 (*indent*))))
393 (format #f "<< ~{~a ~}>>"
394 (map-in-order (lambda (music)
395 (music->lily-string music parser))
396 (ly:music-property sim 'elements)))))
398 (define-extra-display-method SimultaneousMusic (expr parser)
399 "If `sim' is an \afterGrace expression, return \"\\afterGrace ...\".
400 Otherwise, return #f."
401 ;; TODO: do something with afterGraceFraction?
402 (with-music-match (expr (music 'SimultaneousMusic
403 elements (?before-grace
404 (music 'SequentialMusic
405 elements ((music 'SkipMusic)
408 (format #f "\\afterGrace ~a ~a"
409 (music->lily-string ?before-grace parser)
410 (music->lily-string ?grace parser))))
416 (define-display-method EventChord (chord parser)
417 ;; event_chord : simple_element post_events
419 ;; | note_chord_element
421 ;; TODO : tagged post_events
422 ;; post_events : ( post_event | tagged_post_event )*
423 ;; tagged_post_event: '-' \tag embedded_scm post_event
425 (let* ((elements (ly:music-property chord 'elements))
426 (simple-elements (filter (make-music-type-predicate
427 'NoteEvent 'ClusterNoteEvent 'RestEvent
428 'MultiMeasureRestEvent 'SkipEvent 'LyricEvent)
430 (if ((make-music-type-predicate 'StaffSpanEvent 'BreathingEvent) (car elements))
431 ;; first, a special case: StaffSpanEvent (\startStaff, \stopStaff)
432 ;; and BreathingEvent (\breathe)
433 (music->lily-string (car elements) parser)
434 (if (and (not (null? simple-elements))
435 (null? (cdr simple-elements))
436 ;; special case: if this simple_element has any post_events in
437 ;; its 'articulations list, it should be interpreted instead
438 ;; as a note_chord_element to prevent spurious output, e.g.,
439 ;; \displayLilyMusic < c-1\4 >8 -> c-1\48
440 (null? (filter post-event?
441 (ly:music-property (car simple-elements) 'articulations)))
442 ;; same for simple_element with \tweak
443 (null? (ly:music-property (car simple-elements) 'tweaks)))
444 ;; simple_element : note | figure | rest | mmrest | lyric_element | skip
445 (let* ((simple-element (car simple-elements))
446 (duration (ly:music-property simple-element 'duration))
447 (lily-string (format #f "~a~a~a~{~a~^ ~}"
448 (music->lily-string simple-element parser)
449 (duration->lily-string duration)
450 (if (and ((make-music-type-predicate 'RestEvent) simple-element)
451 (ly:pitch? (ly:music-property simple-element 'pitch)))
454 (map-in-order (lambda (music)
455 (music->lily-string music parser))
456 (filter post-event? elements)))))
457 (*previous-duration* duration)
459 (let ((chord-elements (filter (make-music-type-predicate
460 'NoteEvent 'ClusterNoteEvent 'BassFigureEvent)
462 (post-events (filter post-event? elements)))
463 (if (not (null? chord-elements))
464 ;; note_chord_element : '<' (notepitch | drumpitch)* '>" duration post_events
465 (let ((lily-string (format #f "< ~{~a ~}>~a~{~a~^ ~}"
466 (map-in-order (lambda (music)
467 (music->lily-string music parser))
469 (duration->lily-string (ly:music-property (car chord-elements)
471 (map-in-order (lambda (music)
472 (music->lily-string music parser))
474 (*previous-duration* (ly:music-property (car chord-elements) 'duration))
477 (format #f "~{~a~^ ~}" (map-in-order (lambda (music)
478 (music->lily-string music parser))
481 (define-display-method MultiMeasureRestMusic (mmrest parser)
482 (let* ((dur (ly:music-property mmrest 'duration))
483 (ly (format #f "R~a~{~a~^ ~}"
484 (duration->lily-string dur)
485 (map-in-order (lambda (music)
486 (music->lily-string music parser))
487 (ly:music-property mmrest 'articulations)))))
488 (*previous-duration* dur)
491 (define-display-method SkipMusic (skip parser)
492 (format #f "\\skip ~a" (duration->lily-string (ly:music-property skip 'duration) #:force-duration #t)))
494 (define-display-method OttavaMusic (ottava parser)
495 (format #f "\\ottava #~a" (ly:music-property ottava 'ottava-number)))
498 ;;; Notes, rests, skips...
501 (define (simple-note->lily-string event parser)
502 (format #f "~a~a~a~a~{~a~}" ; pitchname octave !? octave-check articulations
503 (note-name->lily-string (ly:music-property event 'pitch) parser)
504 (octave->lily-string (ly:music-property event 'pitch))
505 (let ((forced (ly:music-property event 'force-accidental))
506 (cautionary (ly:music-property event 'cautionary)))
507 (cond ((and (not (null? forced))
509 (not (null? cautionary))
512 ((and (not (null? forced)) forced) "!")
514 (let ((octave-check (ly:music-property event 'absolute-octave)))
515 (if (not (null? octave-check))
516 (format #f "=~a" (cond ((>= octave-check 0)
517 (make-string (1+ octave-check) #\'))
519 (make-string (1- (* -1 octave-check)) #\,))
522 (map-in-order (lambda (event)
523 (music->lily-string event parser))
524 (ly:music-property event 'articulations))))
526 (define-display-method NoteEvent (note parser)
527 (cond ((not (null? (ly:music-property note 'pitch))) ;; note
528 (simple-note->lily-string note parser))
529 ((not (null? (ly:music-property note 'drum-type))) ;; drum
530 (format #f "~a" (ly:music-property note 'drum-type)))
534 (define-display-method ClusterNoteEvent (note parser)
535 (simple-note->lily-string note parser))
537 (define-display-method RestEvent (rest parser)
538 (if (not (null? (ly:music-property rest 'pitch)))
539 (simple-note->lily-string rest parser)
542 (define-display-method MultiMeasureRestEvent (rest parser)
545 (define-display-method SkipEvent (rest parser)
548 (define-display-method RepeatedChord (chord parser)
549 (music->lily-string (ly:music-property chord 'element) parser))
551 (define-display-method MarkEvent (mark parser)
552 (let ((label (ly:music-property mark 'label)))
555 (format #f "\\mark ~a" (markup->lily-string label)))))
557 (define-display-method KeyChangeEvent (key parser)
558 (let ((pitch-alist (ly:music-property key 'pitch-alist))
559 (tonic (ly:music-property key 'tonic)))
560 (if (or (null? pitch-alist)
563 (let ((c-pitch-alist (ly:transpose-key-alist pitch-alist
564 (ly:pitch-diff (ly:make-pitch 0 0 0) tonic))))
565 (format #f "\\key ~a \\~a~a"
566 (note-name->lily-string (ly:music-property key 'tonic) parser)
569 (equal? (ly:parser-lookup parser mode) c-pitch-alist))
570 (symbol->string mode)
572 '(major minor ionian locrian aeolian mixolydian lydian phrygian dorian))
573 (new-line->lily-string))))))
575 (define-display-method RelativeOctaveCheck (octave parser)
576 (let ((pitch (ly:music-property octave 'pitch)))
577 (format #f "\\octaveCheck ~a~a"
578 (note-name->lily-string pitch parser)
579 (octave->lily-string pitch))))
581 (define-display-method VoiceSeparator (sep parser)
584 (define-display-method LigatureEvent (ligature parser)
585 (if (= START (ly:music-property ligature 'span-direction))
589 (define-display-method BarCheck (check parser)
590 (format #f "|~a" (new-line->lily-string)))
592 (define-display-method PesOrFlexaEvent (expr parser)
595 (define-display-method BassFigureEvent (figure parser)
596 (let ((alteration (ly:music-property figure 'alteration))
597 (fig (ly:music-property figure 'figure))
598 (bracket-start (ly:music-property figure 'bracket-start))
599 (bracket-stop (ly:music-property figure 'bracket-stop)))
601 (format #f "~a~a~a~a"
602 (if (null? bracket-start) "" "[")
603 (cond ((null? fig) "_")
604 ((markup? fig) (second fig)) ;; fig: (<number-markup> "number")
606 (if (null? alteration)
609 ((= alteration DOUBLE-FLAT) "--")
610 ((= alteration FLAT) "-")
611 ((= alteration NATURAL) "!")
612 ((= alteration SHARP) "+")
613 ((= alteration DOUBLE-SHARP) "++")
615 (if (null? bracket-stop) "" "]"))))
617 (define-display-method LyricEvent (lyric parser)
618 (let ((text (ly:music-property lyric 'text)))
619 (if (or (string? text)
620 (eqv? (first text) simple-markup))
621 ;; a string or a simple markup
622 (let ((string (if (string? text)
625 (if (string-match "(\"| |[0-9])" string)
626 ;; TODO check exactly in which cases double quotes should be used
627 (format #f "~s" string)
629 (markup->lily-string text))))
631 (define-display-method BreathingEvent (event parser)
638 (define-display-method AutoChangeMusic (m parser)
639 (format #f "\\autochange ~a"
640 (music->lily-string (ly:music-property m 'element) parser)))
642 (define-display-method ContextChange (m parser)
643 (format #f "\\change ~a = \"~a\""
644 (ly:music-property m 'change-to-type)
645 (ly:music-property m 'change-to-id)))
649 (define-display-method TimeScaledMusic (times parser)
650 (let* ((num (ly:music-property times 'numerator))
651 (den (ly:music-property times 'denominator))
652 (nd-gcd (gcd num den)))
653 (parameterize ((*force-line-break* #f)
654 (*time-factor-numerator* (/ num nd-gcd))
655 (*time-factor-denominator* (/ den nd-gcd)))
656 (format #f "\\times ~a/~a ~a"
659 (music->lily-string (ly:music-property times 'element) parser)))))
661 (define-display-method RelativeOctaveMusic (m parser)
662 (music->lily-string (ly:music-property m 'element) parser))
664 (define-display-method TransposedMusic (m parser)
665 (music->lily-string (ly:music-property m 'element) parser))
671 (define-display-method AlternativeEvent (alternative parser) "")
673 (define (repeat->lily-string expr repeat-type parser)
674 (format #f "\\repeat ~a ~a ~a ~a"
676 (ly:music-property expr 'repeat-count)
677 (music->lily-string (ly:music-property expr 'element) parser)
678 (let ((alternatives (ly:music-property expr 'elements)))
679 (if (null? alternatives)
681 (format #f "\\alternative { ~{~a ~}}"
682 (map-in-order (lambda (music)
683 (music->lily-string music parser))
686 (define-display-method VoltaRepeatedMusic (expr parser)
687 (repeat->lily-string expr "volta" parser))
689 (define-display-method UnfoldedRepeatedMusic (expr parser)
690 (repeat->lily-string expr "unfold" parser))
692 (define-display-method PercentRepeatedMusic (expr parser)
693 (repeat->lily-string expr "percent" parser))
695 (define-display-method TremoloRepeatedMusic (expr parser)
696 (let* ((count (ly:music-property expr 'repeat-count))
697 (dots (if (= 0 (modulo count 3)) 0 1))
698 (shift (- (log2 (if (= 0 dots)
701 (element (ly:music-property expr 'element))
703 (if (eqv? (ly:music-property element 'name) 'SequentialMusic)
705 (set! shift (1- shift))
706 (set! den-mult (length (ly:music-property element 'elements)))))
707 (music-map (lambda (m)
708 (let ((duration (ly:music-property m 'duration)))
709 (if (ly:duration? duration)
710 (let* ((dlog (ly:duration-log duration))
711 (ddots (ly:duration-dot-count duration))
712 (dfactor (ly:duration-factor duration))
714 (dden (cdr dfactor)))
715 (set! (ly:music-property m 'duration)
716 (ly:make-duration (- dlog shift)
717 ddots ;;(- ddots dots) ; ????
719 (/ dden den-mult))))))
722 (format #f "\\repeat tremolo ~a ~a"
724 (music->lily-string element parser))))
730 (define-display-method ContextSpeccedMusic (expr parser)
731 (let ((id (ly:music-property expr 'context-id))
732 (create-new (ly:music-property expr 'create-new))
733 (music (ly:music-property expr 'element))
734 (operations (ly:music-property expr 'property-operations))
735 (ctype (ly:music-property expr 'context-type)))
736 (format #f "~a ~a~a~a ~a"
737 (if (and (not (null? create-new)) create-new)
743 (format #f " = ~s" id))
744 (if (null? operations)
746 (format #f " \\with {~{~a~}~%~v_}"
747 (parameterize ((*indent* (+ (*indent*) 2)))
749 (format #f "~%~v_\\~a ~s"
755 (parameterize ((*current-context* ctype))
756 (music->lily-string music parser)))))
758 ;; special cases: \figures \lyrics \drums
759 (define-extra-display-method ContextSpeccedMusic (expr parser)
760 (with-music-match (expr (music 'ContextSpeccedMusic
762 property-operations ?op
763 context-type ?context-type
766 (parameterize ((*explicit-mode* #f))
769 (format #f "\\figures ~a" (music->lily-string ?sequence parser)))
771 (format #f "\\lyrics ~a" (music->lily-string ?sequence parser)))
773 (format #f "\\drums ~a" (music->lily-string ?sequence parser)))
778 ;;; Context properties
780 (define-extra-display-method ContextSpeccedMusic (expr parser)
781 (let ((element (ly:music-property expr 'element))
782 (property-tuning? (make-music-type-predicate 'PropertySet
786 (sequence? (make-music-type-predicate 'SequentialMusic)))
787 (if (and (ly:music? element)
788 (or (property-tuning? element)
789 (and (sequence? element)
790 (every property-tuning? (ly:music-property element 'elements)))))
791 (parameterize ((*current-context* (ly:music-property expr 'context-type)))
792 (music->lily-string element parser))
795 (define (property-value->lily-string arg parser)
796 (cond ((ly:music? arg)
797 (music->lily-string arg parser))
799 (format #f "#~s" arg))
801 (markup->lily-string arg))
803 (format #f "#~a" (scheme-expr->lily-string arg)))))
805 (define-display-method PropertySet (expr parser)
806 (let ((property (ly:music-property expr 'symbol))
807 (value (ly:music-property expr 'value))
808 (once (ly:music-property expr 'once)))
809 (format #f "~a\\set ~a~a = ~a~a"
810 (if (and (not (null? once)))
813 (if (eqv? (*current-context*) 'Bottom)
815 (format #f "~a . " (*current-context*)))
817 (property-value->lily-string value parser)
818 (new-line->lily-string))))
820 (define-display-method PropertyUnset (expr parser)
821 (format #f "\\unset ~a~a~a"
822 (if (eqv? (*current-context*) 'Bottom)
824 (format #f "~a . " (*current-context*)))
825 (ly:music-property expr 'symbol)
826 (new-line->lily-string)))
828 ;;; Layout properties
830 (define-display-method OverrideProperty (expr parser)
831 (let* ((symbol (ly:music-property expr 'symbol))
832 (properties (ly:music-property expr 'grob-property-path
833 (list (ly:music-property expr 'grob-property))))
834 (value (ly:music-property expr 'grob-value))
835 (once (ly:music-property expr 'once)))
837 (format #f "~a\\override ~a~a #'~a = ~a~a"
842 (if (eqv? (*current-context*) 'Bottom)
844 (format #f "~a . " (*current-context*)))
846 (if (null? (cdr properties))
849 (property-value->lily-string value parser)
850 (new-line->lily-string))))
852 (define-display-method RevertProperty (expr parser)
853 (let* ((symbol (ly:music-property expr 'symbol))
854 (properties (ly:music-property expr 'grob-property-path
855 (list (ly:music-property expr 'grob-property)))))
856 (format #f "\\revert ~a~a #'~a~a"
857 (if (eqv? (*current-context*) 'Bottom)
859 (format #f "~a . " (*current-context*)))
861 (if (null? (cdr properties))
864 (new-line->lily-string))))
866 (define-display-method TimeSignatureMusic (expr parser)
867 (let* ((num (ly:music-property expr 'numerator))
868 (den (ly:music-property expr 'denominator))
869 (structure (ly:music-property expr 'beat-structure)))
870 (if (null? structure)
874 (new-line->lily-string))
876 "\\time #'~a ~a/~a~a"
878 (new-line->lily-string)))))
880 ;;; \melisma and \melismaEnd
881 (define-extra-display-method ContextSpeccedMusic (expr parser)
882 "If expr is a melisma, return \"\\melisma\", otherwise, return #f."
883 (with-music-match (expr (music 'ContextSpeccedMusic
884 element (music 'PropertySet
886 symbol 'melismaBusy)))
889 (define-extra-display-method ContextSpeccedMusic (expr parser)
890 "If expr is a melisma end, return \"\\melismaEnd\", otherwise, return #f."
891 (with-music-match (expr (music 'ContextSpeccedMusic
892 element (music 'PropertyUnset
893 symbol 'melismaBusy)))
897 (define-extra-display-method SequentialMusic (expr parser)
898 (with-music-match (expr (music 'SequentialMusic
899 elements ((music 'TempoChangeEvent
902 metronome-count ?count)
903 (music 'ContextSpeccedMusic
904 element (music 'PropertySet
905 symbol 'tempoWholesPerMinute)))))
906 (format #f "\\tempo ~{~a~a~}~a = ~a~a"
908 (list (markup->lily-string ?text) " ")
910 (duration->lily-string ?unit #:force-duration #t)
912 (format #f "~a ~~ ~a" (car ?count) (cdr ?count))
914 (new-line->lily-string))))
916 (define-display-method TempoChangeEvent (expr parser)
917 (let ((text (ly:music-property expr 'text)))
918 (format #f "\\tempo ~a~a"
919 (markup->lily-string text)
920 (new-line->lily-string))))
923 (define clef-name-alist #f)
924 (define-public (memoize-clef-names clefs)
925 "Initialize @code{clef-name-alist}, if not already set."
926 (if (not clef-name-alist)
927 (set! clef-name-alist
928 (map (lambda (name+vals)
929 (cons (cdr name+vals)
933 (define-extra-display-method ContextSpeccedMusic (expr parser)
934 "If @var{expr} is a clef change, return \"\\clef ...\".
935 Otherwise, return @code{#f}."
936 (with-music-match (expr (music 'ContextSpeccedMusic
938 element (music 'SequentialMusic
939 elements ((music 'PropertySet
943 symbol 'middleCClefPosition)
946 symbol 'clefPosition)
948 value ?clef-octavation
949 symbol 'clefOctavation)
951 procedure ly:set-middle-C!)))))
952 (let ((clef-name (assoc-get (list ?clef-glyph ?clef-position 0)
955 (format #f "\\clef \"~a~{~a~a~}\"~a"
957 (cond ((= 0 ?clef-octavation)
959 ((> ?clef-octavation 0)
960 (list "^" (1+ ?clef-octavation)))
962 (list "_" (- 1 ?clef-octavation))))
963 (new-line->lily-string))
967 (define-extra-display-method ContextSpeccedMusic (expr parser)
968 "If `expr' is a bar, return \"\\bar ...\".
969 Otherwise, return #f."
970 (with-music-match (expr (music 'ContextSpeccedMusic
972 element (music 'PropertySet
975 (format #f "\\bar \"~a\"~a" ?bar-type (new-line->lily-string))))
978 (define-extra-display-method ContextSpeccedMusic (expr parser)
979 "If `expr' is a partial measure, return \"\\partial ...\".
980 Otherwise, return #f."
981 (with-music-match (expr (music
988 partial-duration ?duration))))
991 (format #f "\\partial ~a"
992 (duration->lily-string ?duration #:force-duration #t)))))
997 (define-display-method ApplyOutputEvent (applyoutput parser)
998 (let ((proc (ly:music-property applyoutput 'procedure))
999 (ctx (ly:music-property applyoutput 'context-type)))
1000 (format #f "\\applyOutput #'~a #~a"
1002 (or (procedure-name proc)
1003 (with-output-to-string
1005 (pretty-print (procedure-source proc))))))))
1007 (define-display-method ApplyContext (applycontext parser)
1008 (let ((proc (ly:music-property applycontext 'procedure)))
1009 (format #f "\\applyContext #~a"
1010 (or (procedure-name proc)
1011 (with-output-to-string
1013 (pretty-print (procedure-source proc))))))))
1016 (define-display-method PartCombineMusic (expr parser)
1017 (format #f "\\partcombine ~{~a ~}"
1018 (map-in-order (lambda (music)
1019 (music->lily-string music parser))
1020 (ly:music-property expr 'elements))))
1022 (define-extra-display-method PartCombineMusic (expr parser)
1023 (with-music-match (expr (music 'PartCombineMusic
1024 elements ((music 'UnrelativableMusic
1025 element (music 'ContextSpeccedMusic
1028 element ?sequence1))
1029 (music 'UnrelativableMusic
1030 element (music 'ContextSpeccedMusic
1033 element ?sequence2)))))
1034 (format #f "\\partcombine ~a~a~a"
1035 (music->lily-string ?sequence1 parser)
1036 (new-line->lily-string)
1037 (music->lily-string ?sequence2 parser))))
1039 (define-display-method UnrelativableMusic (expr parser)
1040 (music->lily-string (ly:music-property expr 'element) parser))
1043 (define-display-method QuoteMusic (expr parser)
1044 (or (with-music-match (expr (music
1046 quoted-voice-direction ?quoted-voice-direction
1047 quoted-music-name ?quoted-music-name
1048 quoted-context-id "cue"
1049 quoted-context-type 'Voice
1051 (format #f "\\cueDuring #~s #~a ~a"
1053 ?quoted-voice-direction
1054 (music->lily-string ?music parser)))
1055 (format #f "\\quoteDuring #~s ~a"
1056 (ly:music-property expr 'quoted-music-name)
1057 (music->lily-string (ly:music-property expr 'element) parser))))
1062 (define-display-method LineBreakEvent (expr parser)
1063 (if (null? (ly:music-property expr 'break-permission))
1067 (define-display-method PageBreakEvent (expr parser)
1068 (if (null? (ly:music-property expr 'break-permission))
1072 (define-display-method PageTurnEvent (expr parser)
1073 (if (null? (ly:music-property expr 'break-permission))
1077 (define-extra-display-method EventChord (expr parser)
1078 (with-music-match (expr (music 'EventChord
1079 elements ((music 'LineBreakEvent
1080 break-permission 'force)
1081 (music 'PageBreakEvent
1082 break-permission 'force))))
1085 (define-extra-display-method EventChord (expr parser)
1086 (with-music-match (expr (music 'EventChord
1087 elements ((music 'LineBreakEvent
1088 break-permission 'force)
1089 (music 'PageBreakEvent
1090 break-permission 'force)
1091 (music 'PageTurnEvent
1092 break-permission 'force))))
1100 (define-display-method LyricCombineMusic (expr parser)
1101 (format #f "\\lyricsto ~s ~a"
1102 (ly:music-property expr 'associated-context)
1103 (parameterize ((*explicit-mode* #f))
1104 (music->lily-string (ly:music-property expr 'element) parser))))
1107 (define-extra-display-method SimultaneousMusic (expr parser)
1108 (with-music-match (expr (music 'SimultaneousMusic
1109 elements ((music 'ContextSpeccedMusic
1112 element ?note-sequence)
1113 (music 'ContextSpeccedMusic
1114 context-type 'Lyrics
1116 element (music 'LyricCombineMusic
1117 associated-context ?associated-id
1118 element ?lyric-sequence)))))
1119 (if (string=? ?id ?associated-id)
1120 (format #f "~a~a \\addlyrics ~a"
1121 (music->lily-string ?note-sequence parser)
1122 (new-line->lily-string)
1123 (parameterize ((*explicit-mode* #f))
1124 (music->lily-string ?lyric-sequence parser)))
1127 ;; Silence internal event sent at end of each lyrics block
1128 (define-display-method CompletizeExtenderEvent (expr parser)