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*))
113 (if remember (*previous-duration* ly-duration))
114 (let ((log2 (ly:duration-log ly-duration))
115 (dots (ly:duration-dot-count ly-duration))
116 (num+den (ly:duration-factor ly-duration)))
117 (if (or force-duration (not prev-duration) (not (equal? ly-duration prev-duration)))
118 (string-append (case log2
122 (else (number->string (expt 2 log2))))
123 (make-string dots #\.)
124 (let ((num? (not (or (= 1 (car num+den))
125 (and time-factor-numerator
126 (= (car num+den) time-factor-numerator)))))
127 (den? (not (or (= 1 (cdr num+den))
128 (and time-factor-denominator
129 (= (cdr num+den) time-factor-denominator))))))
131 (format #f "*~a/~a" (car num+den) (cdr num+den)))
133 (format #f "*~a" (car num+den)))
141 (define (post-event? m)
142 (music-is-of-type? m 'post-event))
144 (define* (event-direction->lily-string event #:optional (required #t))
145 (let ((direction (ly:music-property event 'direction)))
146 (cond ((or (not direction) (null? direction) (= CENTER direction))
147 (if required "-" ""))
148 ((= UP direction) "^")
149 ((= DOWN direction) "_")
152 (define-macro (define-post-event-display-method type vars direction-required str)
153 `(define-display-method ,type ,vars
155 (event-direction->lily-string ,(car vars) ,direction-required)
158 (define-macro (define-span-event-display-method type vars direction-required str-start str-stop)
159 `(define-display-method ,type ,vars
161 (event-direction->lily-string ,(car vars) ,direction-required)
162 (if (= START (ly:music-property ,(car vars) 'span-direction))
166 (define-display-method HyphenEvent (event parser)
168 (define-display-method ExtenderEvent (event parser)
170 (define-display-method TieEvent (event parser)
172 (define-display-method BeamForbidEvent (event parser)
174 (define-display-method StringNumberEvent (event parser)
175 (format #f "\\~a" (ly:music-property event 'string-number)))
178 (define-display-method TremoloEvent (event parser)
179 (let ((tremolo-type (ly:music-property event 'tremolo-type)))
180 (format #f ":~a" (if (= 0 tremolo-type)
184 (define-post-event-display-method ArticulationEvent (event parser) #t
185 (let ((articulation (ly:music-property event 'articulation-type)))
186 (case (string->symbol articulation)
190 ((staccatissimo) "|")
194 (else (format #f "\\~a" articulation)))))
196 (define-post-event-display-method FingeringEvent (event parser) #t
197 (ly:music-property event 'digit))
199 (define-post-event-display-method TextScriptEvent (event parser) #t
200 (markup->lily-string (ly:music-property event 'text)))
202 (define-post-event-display-method MultiMeasureTextEvent (event parser) #t
203 (markup->lily-string (ly:music-property event 'text)))
205 (define-post-event-display-method BendAfterEvent (event parser) #t
206 (format #f "\\bendAfter #~a" (ly:music-property event 'delta-step)))
208 (define-post-event-display-method HarmonicEvent (event parser) #f "\\harmonic")
209 (define-post-event-display-method GlissandoEvent (event parser) #t "\\glissando")
210 (define-post-event-display-method ArpeggioEvent (event parser) #t "\\arpeggio")
211 (define-post-event-display-method AbsoluteDynamicEvent (event parser) #f
212 (format #f "\\~a" (ly:music-property event 'text)))
214 (define-post-event-display-method StrokeFingerEvent (event parser) #t
215 (format #f "\\rightHandFinger #~a" (ly:music-property event 'digit)))
217 (define-span-event-display-method BeamEvent (event parser) #f "[" "]")
218 (define-span-event-display-method SlurEvent (event parser) #f "(" ")")
219 (define-span-event-display-method CrescendoEvent (event parser) #f "\\<" "\\!")
220 (define-span-event-display-method DecrescendoEvent (event parser) #f "\\>" "\\!")
221 (define-span-event-display-method EpisemaEvent (event parser) #f "\\episemInitium" "\\episemFinis")
222 (define-span-event-display-method PhrasingSlurEvent (event parser) #f "\\(" "\\)")
223 (define-span-event-display-method SustainEvent (event parser) #f "\\sustainOn" "\\sustainOff")
224 (define-span-event-display-method SostenutoEvent (event parser) #f "\\sostenutoOn" "\\sostenutoOff")
225 (define-span-event-display-method TextSpanEvent (event parser) #f "\\startTextSpan" "\\stopTextSpan")
226 (define-span-event-display-method TrillSpanEvent (event parser) #f "\\startTrillSpan" "\\stopTrillSpan")
227 (define-span-event-display-method StaffSpanEvent (event parser) #f "\\startStaff" "\\stopStaff")
228 (define-span-event-display-method NoteGroupingEvent (event parser) #f "\\startGroup" "\\stopGroup")
229 (define-span-event-display-method UnaCordaEvent (event parser) #f "\\unaCorda" "\\treCorde")
235 (define-display-method GraceMusic (expr parser)
236 (format #f "\\grace ~a"
237 (music->lily-string (ly:music-property expr 'element) parser)))
239 ;; \acciaccatura \appoggiatura \grace
240 ;; TODO: it would be better to compare ?start and ?stop
241 ;; with startAppoggiaturaMusic and stopAppoggiaturaMusic,
242 ;; using a custom music equality predicate.
243 (define-extra-display-method GraceMusic (expr parser)
244 "Display method for appoggiatura."
245 (with-music-match (expr (music
252 ;; we check whether ?start and ?stop look like
253 ;; startAppoggiaturaMusic stopAppoggiaturaMusic
254 (and (with-music-match (?start (music
258 duration (ly:make-duration 0 0 0 1)
262 span-direction START))))))
264 (with-music-match (?stop (music
268 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
291 duration (ly:make-duration 0 0 0 1)
295 span-direction START)))
300 grob-property-path '(stroke-style)
304 (with-music-match (?stop (music
310 grob-property-path '(stroke-style)
315 duration (ly:make-duration 0 0 0 1)
319 span-direction STOP))))))
320 (format #f "\\acciaccatura ~a" (music->lily-string ?music parser))))))
322 (define-extra-display-method GraceMusic (expr parser)
323 "Display method for grace."
324 (with-music-match (expr (music
331 ;; we check whether ?start and ?stop look like
332 ;; startGraceMusic stopGraceMusic
333 (and (null? (ly:music-property ?start 'elements))
334 (null? (ly:music-property ?stop 'elements))
335 (format #f "\\grace ~a" (music->lily-string ?music parser)))))
341 (define-display-method SequentialMusic (seq parser)
342 (let ((force-line-break (and (*force-line-break*)
344 (> (length (ly:music-property seq 'elements))
345 (*max-element-number-before-break*))))
346 (elements (ly:music-property seq 'elements))
347 (chord? (make-music-type-predicate 'EventChord))
348 (note-or-chord? (make-music-type-predicate 'EventChord 'NoteEvent
349 'LyricEvent 'RestEvent
351 (cluster? (make-music-type-predicate 'ClusterNoteEvent))
352 (note? (make-music-type-predicate 'NoteEvent)))
353 (format #f "~a~a{~v%~v_~{~a~^ ~}~v%~v_}"
357 (any cluster? (ly:music-property e 'elements)))))
361 (if (*explicit-mode*)
362 ;; if the sequence contains EventChord which contains figures ==> figuremode
363 ;; if the sequence contains EventChord which contains lyrics ==> lyricmode
364 ;; if the sequence contains EventChord which contains drum notes ==> drummode
365 (cond ((any (lambda (chord)
366 (any (make-music-type-predicate 'BassFigureEvent)
367 (ly:music-property chord 'elements)))
368 (filter chord? elements))
370 ((any (lambda (chord)
371 (any (make-music-type-predicate 'LyricEvent)
373 (ly:music-property chord 'elements))))
374 (filter note-or-chord? elements))
376 ((any (lambda (chord)
379 (not (null? (ly:music-property event 'drum-type)))))
381 (ly:music-property chord 'elements))))
382 (filter note-or-chord? elements))
384 (else ;; TODO: other modes?
387 (if force-line-break 1 0)
388 (if force-line-break (+ 2 (*indent*)) 1)
389 (parameterize ((*indent* (+ 2 (*indent*))))
390 (map-in-order (lambda (music)
391 (music->lily-string music parser))
393 (if force-line-break 1 0)
394 (if force-line-break (*indent*) 1))))
396 (define-display-method SimultaneousMusic (sim parser)
397 (parameterize ((*indent* (+ 3 (*indent*))))
398 (format #f "<< ~{~a ~}>>"
399 (map-in-order (lambda (music)
400 (music->lily-string music parser))
401 (ly:music-property sim 'elements)))))
403 (define-extra-display-method SimultaneousMusic (expr parser)
404 "If `sim' is an \afterGrace expression, return \"\\afterGrace ...\".
405 Otherwise, return #f."
406 ;; TODO: do something with afterGraceFraction?
407 (with-music-match (expr (music 'SimultaneousMusic
408 elements (?before-grace
409 (music 'SequentialMusic
410 elements ((music 'SkipMusic)
413 (format #f "\\afterGrace ~a ~a"
414 (music->lily-string ?before-grace parser)
415 (music->lily-string ?grace parser))))
421 (define-display-method EventChord (chord parser)
422 ;; event_chord : command_element
423 ;; | note_chord_element
425 ;; TODO : tagged post_events
426 ;; post_events : ( post_event | tagged_post_event )*
427 ;; tagged_post_event: '-' \tag embedded_scm post_event
429 (let* ((elements (append (ly:music-property chord 'elements)
430 (ly:music-property chord 'articulations)))
431 (chord-elements (filter (lambda (m)
432 (music-is-of-type? m 'rhythmic-event))
434 (post-events (filter post-event? elements))
435 (chord-repeat (ly:music-property chord 'duration)))
436 (cond ((ly:duration? chord-repeat)
437 (let ((duration (duration->lily-string chord-repeat #:remember #t)))
438 (format #f "q~a~{~a~^ ~}"
440 (map-in-order (lambda (music)
441 (music->lily-string music parser))
443 ((pair? chord-elements)
444 ;; note_chord_element : '<' (notepitch | drumpitch)* '>" duration post_events
445 (let ((duration (duration->lily-string (ly:music-property
447 'duration) #:remember #t)))
448 ;; Format duration first so that it does not appear on chord elements
449 (format #f "< ~{~a ~}>~a~{~a~^ ~}"
450 (map-in-order (lambda (music)
451 (music->lily-string music parser))
454 (map-in-order (lambda (music)
455 (music->lily-string music parser))
459 (format #f "~{~a~^ ~}" (map-in-order (lambda (music)
460 (music->lily-string music parser))
463 (define-display-method MultiMeasureRestMusic (mmrest parser)
464 (format #f "R~a~{~a~^ ~}"
465 (duration->lily-string (ly:music-property mmrest 'duration)
467 (map-in-order (lambda (music)
468 (music->lily-string music parser))
469 (ly:music-property mmrest 'articulations))))
471 (define-display-method SkipMusic (skip parser)
472 (format #f "\\skip ~a" (duration->lily-string (ly:music-property skip 'duration) #:force-duration #t)))
474 (define-display-method OttavaMusic (ottava parser)
475 (format #f "\\ottava #~a" (ly:music-property ottava 'ottava-number)))
478 ;;; Notes, rests, skips...
481 (define (simple-note->lily-string event parser)
482 (format #f "~a~a~a~a~a~a~{~a~}" ; pitchname octave !? octave-check duration optional_rest articulations
483 (note-name->lily-string (ly:music-property event 'pitch) parser)
484 (octave->lily-string (ly:music-property event 'pitch))
485 (let ((forced (ly:music-property event 'force-accidental))
486 (cautionary (ly:music-property event 'cautionary)))
487 (cond ((and (not (null? forced))
489 (not (null? cautionary))
492 ((and (not (null? forced)) forced) "!")
494 (let ((octave-check (ly:music-property event 'absolute-octave)))
495 (if (not (null? octave-check))
496 (format #f "=~a" (cond ((>= octave-check 0)
497 (make-string (1+ octave-check) #\'))
499 (make-string (1- (* -1 octave-check)) #\,))
502 (duration->lily-string (ly:music-property event 'duration)
504 (if ((make-music-type-predicate 'RestEvent) event)
506 (map-in-order (lambda (event)
507 (music->lily-string event parser))
508 (ly:music-property event 'articulations))))
510 (define-display-method NoteEvent (note parser)
511 (cond ((not (null? (ly:music-property note 'pitch))) ;; note
512 (simple-note->lily-string note parser))
513 ((not (null? (ly:music-property note 'drum-type))) ;; drum
514 (format #f "~a~a" (ly:music-property note 'drum-type)
515 (duration->lily-string (ly:music-property note 'duration)
520 (define-display-method ClusterNoteEvent (note parser)
521 (simple-note->lily-string note parser))
523 (define-display-method RestEvent (rest parser)
524 (if (not (null? (ly:music-property rest 'pitch)))
525 (simple-note->lily-string rest parser)
526 (string-append "r" (duration->lily-string (ly:music-property rest 'duration)
529 (define-display-method MultiMeasureRestEvent (rest parser)
530 (string-append "R" (duration->lily-string (ly:music-property rest 'duration)
533 (define-display-method SkipEvent (rest parser)
534 (string-append "s" (duration->lily-string (ly:music-property rest 'duration)
537 (define-display-method RepeatedChord (chord parser)
538 (music->lily-string (ly:music-property chord 'element) parser))
540 (define-display-method MarkEvent (mark parser)
541 (let ((label (ly:music-property mark 'label)))
544 (format #f "\\mark ~a" (markup->lily-string label)))))
546 (define-display-method KeyChangeEvent (key parser)
547 (let ((pitch-alist (ly:music-property key 'pitch-alist))
548 (tonic (ly:music-property key 'tonic)))
549 (if (or (null? pitch-alist)
552 (let ((c-pitch-alist (ly:transpose-key-alist pitch-alist
553 (ly:pitch-diff (ly:make-pitch 0 0 0) tonic))))
554 (format #f "\\key ~a \\~a~a"
555 (note-name->lily-string (ly:music-property key 'tonic) parser)
558 (equal? (ly:parser-lookup parser mode) c-pitch-alist))
559 (symbol->string mode)
561 '(major minor ionian locrian aeolian mixolydian lydian phrygian dorian))
562 (new-line->lily-string))))))
564 (define-display-method RelativeOctaveCheck (octave parser)
565 (let ((pitch (ly:music-property octave 'pitch)))
566 (format #f "\\octaveCheck ~a~a"
567 (note-name->lily-string pitch parser)
568 (octave->lily-string pitch))))
570 (define-display-method VoiceSeparator (sep parser)
573 (define-display-method LigatureEvent (ligature parser)
574 (if (= START (ly:music-property ligature 'span-direction))
578 (define-display-method BarCheck (check parser)
579 (format #f "|~a" (new-line->lily-string)))
581 (define-display-method PesOrFlexaEvent (expr parser)
584 (define-display-method BassFigureEvent (figure parser)
585 (let ((alteration (ly:music-property figure 'alteration))
586 (fig (ly:music-property figure 'figure))
587 (bracket-start (ly:music-property figure 'bracket-start))
588 (bracket-stop (ly:music-property figure 'bracket-stop)))
590 (format #f "~a~a~a~a"
591 (if (null? bracket-start) "" "[")
592 (cond ((null? fig) "_")
593 ((markup? fig) (second fig)) ;; fig: (<number-markup> "number")
595 (if (null? alteration)
598 ((= alteration DOUBLE-FLAT) "--")
599 ((= alteration FLAT) "-")
600 ((= alteration NATURAL) "!")
601 ((= alteration SHARP) "+")
602 ((= alteration DOUBLE-SHARP) "++")
604 (if (null? bracket-stop) "" "]"))))
606 (define-display-method LyricEvent (lyric parser)
607 (format "~a~{~a~^ ~}"
608 (let ((text (ly:music-property lyric 'text)))
609 (if (or (string? text)
610 (eqv? (first text) simple-markup))
611 ;; a string or a simple markup
612 (let ((string (if (string? text)
615 (if (string-match "(\"| |[0-9])" string)
616 ;; TODO check exactly in which cases double quotes should be used
617 (format #f "~s" string)
619 (markup->lily-string text)))
620 (map-in-order (lambda (m) (music->lily-string m parser))
621 (ly:music-property lyric 'articulations))))
623 (define-display-method BreathingEvent (event parser)
630 (define-display-method AutoChangeMusic (m parser)
631 (format #f "\\autochange ~a"
632 (music->lily-string (ly:music-property m 'element) parser)))
634 (define-display-method ContextChange (m parser)
635 (format #f "\\change ~a = \"~a\""
636 (ly:music-property m 'change-to-type)
637 (ly:music-property m 'change-to-id)))
641 (define-display-method TimeScaledMusic (times parser)
642 (let* ((num (ly:music-property times 'numerator))
643 (den (ly:music-property times 'denominator))
644 (nd-gcd (gcd num den)))
645 (parameterize ((*force-line-break* #f)
646 (*time-factor-numerator* (/ num nd-gcd))
647 (*time-factor-denominator* (/ den nd-gcd)))
648 (format #f "\\times ~a/~a ~a"
651 (music->lily-string (ly:music-property times 'element) parser)))))
653 (define-display-method RelativeOctaveMusic (m parser)
654 (music->lily-string (ly:music-property m 'element) parser))
656 (define-display-method TransposedMusic (m parser)
657 (music->lily-string (ly:music-property m 'element) parser))
663 (define-display-method AlternativeEvent (alternative parser) "")
665 (define (repeat->lily-string expr repeat-type parser)
666 (format #f "\\repeat ~a ~a ~a ~a"
668 (ly:music-property expr 'repeat-count)
669 (music->lily-string (ly:music-property expr 'element) parser)
670 (let ((alternatives (ly:music-property expr 'elements)))
671 (if (null? alternatives)
673 (format #f "\\alternative { ~{~a ~}}"
674 (map-in-order (lambda (music)
675 (music->lily-string music parser))
678 (define-display-method VoltaRepeatedMusic (expr parser)
679 (repeat->lily-string expr "volta" parser))
681 (define-display-method UnfoldedRepeatedMusic (expr parser)
682 (repeat->lily-string expr "unfold" parser))
684 (define-display-method PercentRepeatedMusic (expr parser)
685 (repeat->lily-string expr "percent" parser))
687 (define-display-method TremoloRepeatedMusic (expr parser)
688 (let* ((count (ly:music-property expr 'repeat-count))
689 (dots (if (= 0 (modulo count 3)) 0 1))
690 (shift (- (log2 (if (= 0 dots)
693 (element (ly:music-property expr 'element))
695 (if (eqv? (ly:music-property element 'name) 'SequentialMusic)
697 (set! shift (1- shift))
698 (set! den-mult (length (ly:music-property element 'elements)))))
699 (music-map (lambda (m)
700 (let ((duration (ly:music-property m 'duration)))
701 (if (ly:duration? duration)
702 (let* ((dlog (ly:duration-log duration))
703 (ddots (ly:duration-dot-count duration))
704 (dfactor (ly:duration-factor duration))
706 (dden (cdr dfactor)))
707 (set! (ly:music-property m 'duration)
708 (ly:make-duration (- dlog shift)
709 ddots ;;(- ddots dots) ; ????
711 (/ dden den-mult))))))
714 (format #f "\\repeat tremolo ~a ~a"
716 (music->lily-string element parser))))
722 (define-display-method ContextSpeccedMusic (expr parser)
723 (let ((id (ly:music-property expr 'context-id))
724 (create-new (ly:music-property expr 'create-new))
725 (music (ly:music-property expr 'element))
726 (operations (ly:music-property expr 'property-operations))
727 (ctype (ly:music-property expr 'context-type)))
728 (format #f "~a ~a~a~a ~a"
729 (if (and (not (null? create-new)) create-new)
735 (format #f " = ~s" id))
736 (if (null? operations)
738 (format #f " \\with {~{~a~}~%~v_}"
739 (parameterize ((*indent* (+ (*indent*) 2)))
741 (format #f "~%~v_\\~a ~s"
747 (parameterize ((*current-context* ctype))
748 (music->lily-string music parser)))))
750 ;; special cases: \figures \lyrics \drums
751 (define-extra-display-method ContextSpeccedMusic (expr parser)
752 (with-music-match (expr (music 'ContextSpeccedMusic
754 property-operations ?op
755 context-type ?context-type
758 (parameterize ((*explicit-mode* #f))
761 (format #f "\\figures ~a" (music->lily-string ?sequence parser)))
763 (format #f "\\lyrics ~a" (music->lily-string ?sequence parser)))
765 (format #f "\\drums ~a" (music->lily-string ?sequence parser)))
770 ;;; Context properties
772 (define-extra-display-method ContextSpeccedMusic (expr parser)
773 (let ((element (ly:music-property expr 'element))
774 (property-tuning? (make-music-type-predicate 'PropertySet
778 (sequence? (make-music-type-predicate 'SequentialMusic)))
779 (if (and (ly:music? element)
780 (or (property-tuning? element)
781 (and (sequence? element)
782 (every property-tuning? (ly:music-property element 'elements)))))
783 (parameterize ((*current-context* (ly:music-property expr 'context-type)))
784 (music->lily-string element parser))
787 (define (property-value->lily-string arg parser)
788 (cond ((ly:music? arg)
789 (music->lily-string arg parser))
791 (format #f "#~s" arg))
793 (markup->lily-string arg))
795 (format #f "#~a" (scheme-expr->lily-string arg)))))
797 (define-display-method PropertySet (expr parser)
798 (let ((property (ly:music-property expr 'symbol))
799 (value (ly:music-property expr 'value))
800 (once (ly:music-property expr 'once)))
801 (format #f "~a\\set ~a~a = ~a~a"
802 (if (and (not (null? once)))
805 (if (eqv? (*current-context*) 'Bottom)
807 (format #f "~a . " (*current-context*)))
809 (property-value->lily-string value parser)
810 (new-line->lily-string))))
812 (define-display-method PropertyUnset (expr parser)
813 (format #f "\\unset ~a~a~a"
814 (if (eqv? (*current-context*) 'Bottom)
816 (format #f "~a . " (*current-context*)))
817 (ly:music-property expr 'symbol)
818 (new-line->lily-string)))
820 ;;; Layout properties
822 (define-display-method OverrideProperty (expr parser)
823 (let* ((symbol (ly:music-property expr 'symbol))
824 (properties (ly:music-property expr 'grob-property-path
825 (list (ly:music-property expr 'grob-property))))
826 (value (ly:music-property expr 'grob-value))
827 (once (ly:music-property expr 'once)))
829 (format #f "~a\\override ~a~a #'~a = ~a~a"
834 (if (eqv? (*current-context*) 'Bottom)
836 (format #f "~a . " (*current-context*)))
838 (if (null? (cdr properties))
841 (property-value->lily-string value parser)
842 (new-line->lily-string))))
844 (define-display-method RevertProperty (expr parser)
845 (let* ((symbol (ly:music-property expr 'symbol))
846 (properties (ly:music-property expr 'grob-property-path
847 (list (ly:music-property expr 'grob-property)))))
848 (format #f "\\revert ~a~a #'~a~a"
849 (if (eqv? (*current-context*) 'Bottom)
851 (format #f "~a . " (*current-context*)))
853 (if (null? (cdr properties))
856 (new-line->lily-string))))
858 (define-display-method TimeSignatureMusic (expr parser)
859 (let* ((num (ly:music-property expr 'numerator))
860 (den (ly:music-property expr 'denominator))
861 (structure (ly:music-property expr 'beat-structure)))
862 (if (null? structure)
866 (new-line->lily-string))
868 "\\time #'~a ~a/~a~a"
870 (new-line->lily-string)))))
872 ;;; \melisma and \melismaEnd
873 (define-extra-display-method ContextSpeccedMusic (expr parser)
874 "If expr is a melisma, return \"\\melisma\", otherwise, return #f."
875 (with-music-match (expr (music 'ContextSpeccedMusic
876 element (music 'PropertySet
878 symbol 'melismaBusy)))
881 (define-extra-display-method ContextSpeccedMusic (expr parser)
882 "If expr is a melisma end, return \"\\melismaEnd\", otherwise, return #f."
883 (with-music-match (expr (music 'ContextSpeccedMusic
884 element (music 'PropertyUnset
885 symbol 'melismaBusy)))
889 (define-extra-display-method SequentialMusic (expr parser)
890 (with-music-match (expr (music 'SequentialMusic
891 elements ((music 'TempoChangeEvent
894 metronome-count ?count)
895 (music 'ContextSpeccedMusic
896 element (music 'PropertySet
897 symbol 'tempoWholesPerMinute)))))
898 (format #f "\\tempo ~{~a~a~}~a = ~a~a"
900 (list (markup->lily-string ?text) " ")
902 (duration->lily-string ?unit #:force-duration #t)
904 (format #f "~a ~~ ~a" (car ?count) (cdr ?count))
906 (new-line->lily-string))))
908 (define-display-method TempoChangeEvent (expr parser)
909 (let ((text (ly:music-property expr 'text)))
910 (format #f "\\tempo ~a~a"
911 (markup->lily-string text)
912 (new-line->lily-string))))
915 (define clef-name-alist #f)
916 (define-public (memoize-clef-names clefs)
917 "Initialize @code{clef-name-alist}, if not already set."
918 (if (not clef-name-alist)
919 (set! clef-name-alist
920 (map (lambda (name+vals)
921 (cons (cdr name+vals)
925 (define-extra-display-method ContextSpeccedMusic (expr parser)
926 "If @var{expr} is a clef change, return \"\\clef ...\".
927 Otherwise, return @code{#f}."
928 (with-music-match (expr (music 'ContextSpeccedMusic
930 element (music 'SequentialMusic
931 elements ((music 'PropertySet
935 symbol 'middleCClefPosition)
938 symbol 'clefPosition)
940 value ?clef-octavation
941 symbol 'clefOctavation)
943 procedure ly:set-middle-C!)))))
944 (let ((clef-name (assoc-get (list ?clef-glyph ?clef-position 0)
947 (format #f "\\clef \"~a~{~a~a~}\"~a"
949 (cond ((= 0 ?clef-octavation)
951 ((> ?clef-octavation 0)
952 (list "^" (1+ ?clef-octavation)))
954 (list "_" (- 1 ?clef-octavation))))
955 (new-line->lily-string))
959 (define-extra-display-method ContextSpeccedMusic (expr parser)
960 "If `expr' is a bar, return \"\\bar ...\".
961 Otherwise, return #f."
962 (with-music-match (expr (music 'ContextSpeccedMusic
964 element (music 'PropertySet
967 (format #f "\\bar \"~a\"~a" ?bar-type (new-line->lily-string))))
970 (define-extra-display-method ContextSpeccedMusic (expr parser)
971 "If `expr' is a partial measure, return \"\\partial ...\".
972 Otherwise, return #f."
973 (with-music-match (expr (music
980 partial-duration ?duration))))
983 (format #f "\\partial ~a"
984 (duration->lily-string ?duration #:force-duration #t)))))
989 (define-display-method ApplyOutputEvent (applyoutput parser)
990 (let ((proc (ly:music-property applyoutput 'procedure))
991 (ctx (ly:music-property applyoutput 'context-type)))
992 (format #f "\\applyOutput #'~a #~a"
994 (or (procedure-name proc)
995 (with-output-to-string
997 (pretty-print (procedure-source proc))))))))
999 (define-display-method ApplyContext (applycontext parser)
1000 (let ((proc (ly:music-property applycontext 'procedure)))
1001 (format #f "\\applyContext #~a"
1002 (or (procedure-name proc)
1003 (with-output-to-string
1005 (pretty-print (procedure-source proc))))))))
1008 (define-display-method PartCombineMusic (expr parser)
1009 (format #f "\\partcombine ~{~a ~}"
1010 (map-in-order (lambda (music)
1011 (music->lily-string music parser))
1012 (ly:music-property expr 'elements))))
1014 (define-extra-display-method PartCombineMusic (expr parser)
1015 (with-music-match (expr (music 'PartCombineMusic
1016 elements ((music 'UnrelativableMusic
1017 element (music 'ContextSpeccedMusic
1020 element ?sequence1))
1021 (music 'UnrelativableMusic
1022 element (music 'ContextSpeccedMusic
1025 element ?sequence2)))))
1026 (format #f "\\partcombine ~a~a~a"
1027 (music->lily-string ?sequence1 parser)
1028 (new-line->lily-string)
1029 (music->lily-string ?sequence2 parser))))
1031 (define-display-method UnrelativableMusic (expr parser)
1032 (music->lily-string (ly:music-property expr 'element) parser))
1035 (define-display-method QuoteMusic (expr parser)
1036 (or (with-music-match (expr (music
1038 quoted-voice-direction ?quoted-voice-direction
1039 quoted-music-name ?quoted-music-name
1040 quoted-context-id "cue"
1041 quoted-context-type 'Voice
1043 (format #f "\\cueDuring #~s #~a ~a"
1045 ?quoted-voice-direction
1046 (music->lily-string ?music parser)))
1047 (format #f "\\quoteDuring #~s ~a"
1048 (ly:music-property expr 'quoted-music-name)
1049 (music->lily-string (ly:music-property expr 'element) parser))))
1054 (define-display-method LineBreakEvent (expr parser)
1055 (if (null? (ly:music-property expr 'break-permission))
1059 (define-display-method PageBreakEvent (expr parser)
1060 (if (null? (ly:music-property expr 'break-permission))
1064 (define-display-method PageTurnEvent (expr parser)
1065 (if (null? (ly:music-property expr 'break-permission))
1069 (define-extra-display-method EventChord (expr parser)
1070 (with-music-match (expr (music 'EventChord
1071 elements ((music 'LineBreakEvent
1072 break-permission 'force)
1073 (music 'PageBreakEvent
1074 break-permission 'force))))
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)
1083 (music 'PageTurnEvent
1084 break-permission 'force))))
1092 (define-display-method LyricCombineMusic (expr parser)
1093 (format #f "\\lyricsto ~s ~a"
1094 (ly:music-property expr 'associated-context)
1095 (parameterize ((*explicit-mode* #f))
1096 (music->lily-string (ly:music-property expr 'element) parser))))
1099 (define-extra-display-method SimultaneousMusic (expr parser)
1100 (with-music-match (expr (music 'SimultaneousMusic
1101 elements ((music 'ContextSpeccedMusic
1104 element ?note-sequence)
1105 (music 'ContextSpeccedMusic
1106 context-type 'Lyrics
1108 element (music 'LyricCombineMusic
1109 associated-context ?associated-id
1110 element ?lyric-sequence)))))
1111 (if (string=? ?id ?associated-id)
1112 (format #f "~a~a \\addlyrics ~a"
1113 (music->lily-string ?note-sequence parser)
1114 (new-line->lily-string)
1115 (parameterize ((*explicit-mode* #f))
1116 (music->lily-string ?lyric-sequence parser)))
1119 ;; Silence internal event sent at end of each lyrics block
1120 (define-display-method CompletizeExtenderEvent (expr parser)