2 (define (denominator-tuplet-formatter mus)
3 (number->string (ly-get-mus-property mus 'denominator)))
5 (define (fraction-tuplet-formatter mus)
6 (string-append (number->string (ly-get-mus-property mus 'numerator))
8 (number->string (ly-get-mus-property mus 'denominator))
11 (define (unfold-repeats music)
13 This function replaces all repeats with unfold repeats. It was
14 written by Rune Zedeler. "
15 (let* ((es (ly-get-mus-property music 'elements))
16 (e (ly-get-mus-property music 'element))
17 (n (ly-music-name music)))
19 (if (equal? n "Repeated_music")
22 music 'length Repeated_music::unfolded_music_length)
24 music 'iterator-ctor Unfolded_repeat_iterator::constructor)))
29 (map unfold-repeats es)))
39 (define (pitchify-scripts music)
40 "Copy the pitch fields of the Note_requests into Text_script_requests, to aid
42 (define (find-note musics)
43 (filter-list (lambda (m) (equal? (ly-music-name m) "Note_req")) musics)
45 (define (find-scripts musics)
46 (filter-list (lambda (m) (equal? (ly-music-name m) "Text_script_req")) musics))
49 (e (ly-get-mus-property music 'element))
50 (es (ly-get-mus-property music 'elements))
51 (notes (find-note es))
52 (pitch (if (pair? notes) (ly-get-mus-property (car notes) 'pitch) #f))
56 (map (lambda (x) (ly-set-mus-property x 'pitch pitch)) (find-scripts es))
62 (map pitchify-scripts es)))
67 (pitchify-scripts e)))
77 (define (make-grob-property-set grobs gprop val)
78 "Make a M-exp that sets GPROP to VAL in GROBS. Does a pop first, i.e.
79 this is not an override
82 (let* ((m (ly-make-music "Music")))
83 (ly-set-mus-property m 'iterator-ctor Push_property_iterator::constructor)
84 (ly-set-mus-property m 'symbols grobs)
85 (ly-set-mus-property m 'grob-property gprop)
86 (ly-set-mus-property m 'grob-value val)
87 (ly-set-mus-property m 'pop-first #t)
93 (define (make-grob-property-revert grobs gprop)
94 (let* ((m (ly-make-music "Music")))
95 (ly-set-mus-property m 'iterator-ctor Pop_property_iterator::constructor)
96 (ly-set-mus-property m 'symbols grobs)
97 (ly-set-mus-property m 'grob-property gprop)
103 (define (make-voice-props-set n)
104 (make-sequential-music
106 (make-grob-property-set '(Tie Slur Stem Dots) 'direction
108 (make-grob-property-set '(NoteColumn) 'horizontal-shift (quotient n 2))
112 (define (make-voice-props-revert)
113 (make-sequential-music
115 (make-grob-property-revert '(Tie Slur Stem Dots) 'direction)
116 (make-grob-property-revert '(NoteColumn) 'horizontal-shift)
120 (define (context-spec-music m context . rest)
121 "Add \context CONTEXT = foo to M. "
123 (let* ((cm (ly-make-music "Context_specced_music")))
124 (ly-set-mus-property cm 'element m)
125 (ly-set-mus-property cm 'context-type context)
126 (if (and (pair? rest) (string? (car rest)))
127 (ly-set-mus-property cm 'context-id (car rest))
132 (define (make-sequential-music elts)
133 (let* ((m (ly-make-music "Sequential_music")))
134 (ly-set-mus-property m 'elements elts)
137 (define (make-simultaneous-music elts)
138 (let* ((m (ly-make-music "Simultaneous_music")))
139 (ly-set-mus-property m 'elements elts)
142 (define (music-separator? m)
144 (let* ((n (ly-get-mus-property m 'name )))
145 (and (symbol? n) (equal? 'separator n))
148 (define (split-one sep? l acc)
149 "Split off the first parts before separator and return both parts.
156 (split-one sep? (cdr l) (cons (car l) acc))
160 (define (split-list l sep?)
163 (let* ((c (split-one sep? l '())))
164 (cons (reverse! (car c) '()) (split-list (cdr c) sep?))
170 ; (display (split-list '(a b c / d e f / g) (lambda (x) (equal? x '/))) )
173 ;;; splitting chords into voices.
175 (define (voicify-list lst number)
176 "Make a list of Musics.
178 voicify-list :: [ [Music ] ] -> number -> [Music]
179 LST is a list music-lists.
183 (cons (context-spec-music
184 (make-sequential-music
186 (make-voice-props-set number)
187 (make-simultaneous-music (car lst))))
189 "Voice" (number->string number))
190 (voicify-list (cdr lst) (+ number 1))
194 (define (voicify-chord ch)
195 "Split the parts of a chord into different Voices using separator"
196 (let* ((es (ly-get-mus-property ch 'elements)))
199 (ly-set-mus-property ch 'elements
200 (voicify-list (split-list es music-separator?) 0))
204 (define (voicify-music m)
205 "Recursively split chords that are separated with \\ "
209 (error "not music!"))
212 ((es (ly-get-mus-property m 'elements))
213 (e (ly-get-mus-property m 'element))
217 (and (equal? (ly-music-name m) "Simultaneous_music")
218 (reduce (lambda (x y ) (or x y)) (map music-separator? es)))
222 (ly-set-mus-property m 'elements (map voicify-music es)))
224 (ly-set-mus-property m 'element (voicify-music e)))