;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; tuplets.
-
-(define-public (denominator-tuplet-formatter mus)
- (number->string (ly:get-mus-property mus 'denominator)))
-
-(define-public (fraction-tuplet-formatter mus)
- (string-append (number->string (ly:get-mus-property mus 'numerator))
- ":"
- (number->string (ly:get-mus-property mus 'denominator))
- ))
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (music-map function music)
"Apply @var{function} to @var{music} and all of the music it contains. "
(function music)
))
-(define-public (display-one-music music)
+(define-public (music-filter pred? music)
+ "Filter out music expressions that do not satisfy PRED."
+
+ (define (inner-music-filter pred? music)
+ "Recursive function."
+ (let* ((es (ly:get-mus-property music 'elements))
+ (e (ly:get-mus-property music 'element))
+ (as (ly:get-mus-property music 'articulations))
+ (filtered-as (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) as)))
+ (filtered-e (if (ly:music? e)
+ (inner-music-filter pred? e)
+ e))
+ (filtered-es (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) es)))
+ )
+
+ (ly:set-mus-property! music 'element filtered-e)
+ (ly:set-mus-property! music 'elements filtered-es)
+ (ly:set-mus-property! music 'articulations filtered-as)
+
+ ;; if filtering emptied the expression, we remove it completely.
+ (if (or (pred? music)
+ (and (eq? filtered-es '()) (not (ly:music? e))
+ (or (not (eq? es '()))
+ (ly:music? e))))
+ (set! music '()))
+
+ music))
+
+ (set! music (inner-music-filter pred? music))
+ (if (ly:music? music)
+ music
+ (make-music-by-name 'Music) ;must return music.
+ ))
+
+(define-public (remove-tag tag)
+ (lambda (mus)
+ (music-filter
+ (lambda (m)
+ (let* ((tags (ly:get-mus-property m 'tags))
+ (res (memq tag tags)))
+ res)) mus)))
+
+(define-public (display-music music)
+ "Display music, not done with music-map for clarity of presentation."
(display music)
+ (display ": { ")
+
+ (let* ((es (ly:get-mus-property music 'elements))
+ (e (ly:get-mus-property music 'element))
+ )
+
+ (display (ly:get-mutable-properties music))
+
+ (if (pair? es)
+ (begin (display "\nElements: {\n")
+ (map display-music es)
+ (display "}\n")
+ ))
+
+
+ (if (ly:music? e)
+ (begin
+ (display "\nChild:")
+ (display-music e)
+ )
+ )
+ )
+ (display " }\n")
music
)
-(define-public (display-music arg)
- (music-map display-one-music arg))
-
+
+
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define (shift-one-duration-log music shift dot)
music))
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; clusters.
+
+(define-public (note-to-cluster music)
+ "Replace NoteEvents by ClusterNoteEvents."
+ (if (eq? (ly:get-mus-property music 'name) 'NoteEvent)
+ (let* ((cn (make-music-by-name 'ClusterNoteEvent)))
+
+ (ly:set-mus-property! cn 'pitch (ly:get-mus-property music 'pitch))
+ (ly:set-mus-property! cn 'duration (ly:get-mus-property music 'duration))
+ cn)
+ music))
+
+(define-public (notes-to-clusters music)
+ (music-map note-to-cluster music))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; repeats.
music))
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(define (pitchify-scripts music)
- "Copy the pitch fields of the Note_requests into Text_script_requests, to aid
-Fingering_engraver."
- (define (find-note musics)
- (filter-list (lambda (m) (equal? (ly:music-name m) "Note_req")) musics)
- )
- (define (find-scripts musics)
- (filter-list (lambda (m) (equal? (ly:music-name m) "Text_script_req")) musics))
-
- (let* (
- (e (ly:get-mus-property music 'element))
- (es (ly:get-mus-property music 'elements))
- (notes (find-note es))
- (pitch (if (pair? notes) (ly:get-mus-property (car notes) 'pitch) #f))
- )
-
- (if pitch
- (map (lambda (x) (ly:set-mus-property! x 'pitch pitch)) (find-scripts es))
- )
-
- (if (pair? es)
- (ly:set-mus-property!
- music 'elements
- (map pitchify-scripts es)))
-
- (if (ly:music? e)
- (ly:set-mus-property!
- music 'element
- (pitchify-scripts e)))
-
- music))
-
-
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; property setting music objs.
+
(define-public (make-grob-property-set grob gprop val)
- "Make a M-exp that sets GPROP to VAL in GROBS. Does a pop first, i.e.
-this is not an override
-"
+
+ "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
+i.e. this is not an override"
(let* ((m (make-music-by-name 'OverrideProperty)))
(ly:set-mus-property! m 'symbol grob)
m
))
+(define-public (make-grob-property-override grob gprop val)
+
+ "Make a Music expression that sets GPROP to VAL in GROB. Does a pop first,
+i.e. this is not an override"
+
+ (let* ((m (make-music-by-name 'OverrideProperty)))
+ (ly:set-mus-property! m 'symbol grob)
+ (ly:set-mus-property! m 'grob-property gprop)
+ (ly:set-mus-property! m 'grob-value val)
+
+ m
+
+ ))
(define-public (make-grob-property-revert grob gprop)
m
))
-
+
+(define direction-polyphonic-grobs
+ '(Tie Slur Script TextScript Stem Dots DotColumn))
+
(define-public (make-voice-props-set n)
(make-sequential-music
(append
(map (lambda (x) (make-grob-property-set x 'direction
(if (odd? n) -1 1)))
- '(Tie Slur Stem Dots))
+ direction-polyphonic-grobs)
(list
(make-grob-property-set 'NoteColumn 'horizontal-shift (quotient n 2))
(make-grob-property-set 'MultiMeasureRest 'staff-position
(define-public (make-voice-props-revert)
(make-sequential-music
- (list
- (make-grob-property-revert 'Tie 'direction)
- (make-grob-property-revert 'Dots 'direction)
- (make-grob-property-revert 'Stem 'direction)
- (make-grob-property-revert 'Slur 'direction)
- (make-grob-property-revert 'NoteColumn 'horizontal-shift)
+ (append
+ (map (lambda (x) (make-grob-property-revert x 'direction))
+ direction-polyphonic-grobs)
+
+ (list (make-grob-property-revert 'NoteColumn 'horizontal-shift))
))
)
+
(define-public (context-spec-music m context . rest)
- "Add \context CONTEXT = foo to M. "
+ "Add \\context CONTEXT = foo to M. "
(let* ((cm (make-music-by-name 'ContextSpeccedMusic)))
(ly:set-mus-property! cm 'element m)
cm
))
+(define-public (make-apply-context func)
+ (let*
+ ((m (make-music-by-name 'ApplyContext)))
+
+ (ly:set-mus-property! m 'procedure func)
+ m
+ ))
+
(define-public (make-sequential-music elts)
(let* ((m (make-music-by-name 'SequentialMusic)))
(ly:set-mus-property! m 'elements elts)
))
+(define-public (make-nonevent-skip dur)
+ (let* ((m (make-music-by-name 'NonEventSkip)))
+ (ly:set-mus-property! m 'duration dur)
+ m
+ ))
+
+;;;;;;;;;;;;;;;;
+
+;; mmrest
(define-public (make-multi-measure-rest duration location)
(let*
(
(skip ( make-music-by-name 'SkipEvent))
(ch (make-music-by-name 'BarCheck))
(ch2 (make-music-by-name 'BarCheck))
+ (seq (make-music-by-name 'MultiMeasureRestMusicGroup))
)
+ (map (lambda (x) (ly:set-mus-property! x 'origin location))
+ (list start stop skip ch ch2 seq))
(ly:set-mus-property! start 'span-direction START)
(ly:set-mus-property! stop 'span-direction STOP)
(ly:set-mus-property! skip 'duration duration)
- (map (lambda (x) (ly:set-mus-property! x 'origin location))
- (list start stop skip ch ch2))
- (make-sequential-music
+ (ly:set-mus-property! seq 'elements
(list
ch
(make-event-chord (list start))
(make-event-chord (list stop))
ch2
))
+
+ seq
))
+(define-public (glue-mm-rest-texts music)
+ "Check if we have R1*4-\\markup { .. }, and if applicable convert to
+a property set for MultiMeasureRestNumber."
+
+ (define (script-to-mmrest-text script-music)
+ "Extract 'direction and 'text from SCRIPT-MUSIC, and transform into property sets."
+
+ (let*
+ (
+ (text (ly:get-mus-property script-music 'text))
+ (dir (ly:get-mus-property script-music 'direction))
+ (p (make-music-by-name 'MultiMeasureTextEvent))
+ )
+
+ (if (ly:dir? dir)
+ (ly:set-mus-property! p 'direction dir))
+ (ly:set-mus-property! p 'text text)
+ p
+ ))
+
+ (if (eq? (ly:get-mus-property music 'name) 'MultiMeasureRestMusicGroup)
+ (let*
+ (
+ (text? (lambda (x) (memq 'script-event (ly:get-mus-property x 'types))))
+ (es (ly:get-mus-property music 'elements))
+ (texts (map script-to-mmrest-text (filter text? es)))
+ (others (remove text? es))
+ )
+ (if (pair? texts)
+ (ly:set-mus-property!
+ music 'elements
+ (cons (make-event-chord texts) others)
+ ))
+ ))
+ music
+ )
+
(define-public (make-property-set sym val)
(let*
m
))
+
+
+(define-public (make-ottava-set octavation)
+ (let*
+ ((m (make-music-by-name 'ApplyContext)))
+
+
+ (define (ottava-modify context)
+ "Either reset centralCPosition to the stored original, or remember
+old centralCPosition, add OCTAVATION to centralCPosition, and set
+OTTAVATION to `8va', or whatever appropriate."
+
+ (if (number? (ly:get-context-property context 'centralCPosition))
+
+ (if (= octavation 0)
+ (let*
+ ((where (ly:context-property-where-defined context 'centralCPosition))
+ (oc0 (ly:get-context-property context 'originalCentralCPosition)))
+
+ (ly:set-context-property! context 'centralCPosition oc0)
+ (ly:unset-context-property where 'originalCentralCPosition)
+ (ly:unset-context-property where 'ottavation))
+
+ (let*
+ ((where (ly:context-property-where-defined context 'centralCPosition))
+ (c0 (ly:get-context-property context 'centralCPosition))
+ (new-c0 (+ c0 (* -7 octavation)))
+ (string (cdr
+ (assoc octavation '((2 . "15ma")
+ (1 . "8va")
+ (0 . #f)
+ (-1 . "8va bassa")
+ (-2 . "15ma bassa"))))))
+
+ (ly:set-context-property! context 'centralCPosition new-c0)
+ (ly:set-context-property! context 'originalCentralCPosition c0)
+ (ly:set-context-property! context 'ottavation string)
+
+ ))))
+
+ (ly:set-mus-property! m 'procedure ottava-modify)
+ (context-spec-music m 'Staff)
+ ))
+
+(define-public (set-octavation ottavation)
+ (ly:export (make-ottava-set ottavation)))
+
(define-public (make-time-signature-set num den . rest)
" Set properties for time signature NUM/DEN.
Rest can contain a list of beat groupings
(set4 (make-property-set 'beatGrouping (if (pair? rest)
(car rest)
'())))
- (basic (list set1 set2 set3 set4))
-
- )
+ (basic (list set1 set2 set3 set4)))
(context-spec-music
- (make-sequential-music basic) "Timing")))
+ (make-sequential-music basic) 'Timing)))
+
+(define-public (make-mark-set label)
+ "make the music for the \\mark command."
+
+ (let*
+ ((set (if (integer? label)
+ (context-spec-music (make-property-set 'rehearsalMark label)
+ 'Score)
+ #f))
+ (ev (make-music-by-name 'MarkEvent))
+ (ch (make-event-chord (list ev)))
+ )
+
+
+ (if set
+ (make-sequential-music (list set ch))
+ (begin
+ (ly:set-mus-property! ev 'label label)
+ ch))))
+
+
(define-public (set-time-signature num den . rest)
- (ly:export (apply make-time-signature-set `(,num ,den . ,rest)))
- )
+ (ly:export (apply make-time-signature-set `(,num ,den . ,rest))))
(define-public (make-penalty-music pen)
(let
m
))
+(define-public (make-lyric-event string duration)
+ (let* ((m (make-music-by-name 'LyricEvent)))
+
+ (ly:set-mus-property! m 'duration duration)
+ (ly:set-mus-property! m 'text string)
+ m))
+
(define-public (make-span-event type spandir)
(let* (
(m (make-music-by-name type))
(set-mus-properties! m (cdr alist)))
))
+
+
(define-public (music-separator? m)
"Is M a separator?"
(let* ((ts (ly:get-mus-property m 'types )))
(memq 'separator ts)
))
-(define (split-one sep? l acc)
- "Split off the first parts before separator and return both parts.
-
-"
- (if (null? l)
- (cons acc '())
- (if (sep? (car l))
- (cons acc (cdr l))
- (split-one sep? (cdr l) (cons (car l) acc))
- )
- ))
-
-(define-public (split-list l sep?)
- "
-
-(display (split-list '(a b c / d e f / g) (lambda (x) (equal? x '/))) )
-=>
- ...
-
-"
- (if (null? l)
- '()
- (let* ((c (split-one sep? l '())))
- (cons (reverse! (car c) '()) (split-list (cdr c) sep?))
- )
- )
- )
;;; splitting chords into voices.
(make-voice-props-set number)
(make-simultaneous-music (car lst))))
- "Voice" (number->string number))
+ 'Voice (number->string number))
(voicify-list (cdr lst) (+ number 1))
))
)
(define (voicify-chord ch)
"Split the parts of a chord into different Voices using separator"
(let* ((es (ly:get-mus-property ch 'elements)))
-
-
+
(ly:set-mus-property! ch 'elements
(voicify-list (split-list es music-separator?) 0))
ch
(ly:set-mus-property! m 'element (voicify-music e)))
(if
(and (equal? (ly:music-name m) "Simultaneous_music")
- (reduce (lambda (x y ) (or x y)) (map music-separator? es)))
+ (reduce (lambda (x y ) (or x y)) #f (map music-separator? es)))
(voicify-chord m)
)
;;(eq? #t (ly:get-grob-property elt symbol))
(not (eq? #f (memq symbol (ly:get-grob-property elt 'interfaces))))))
+(define-public ((outputproperty-compatibility func sym val) grob g-context ao-context)
+ (if (func grob)
+ (ly:set-grob-property! grob sym val)))
+
+
+(define-public ((set-output-property grob-name symbol val) grob grob-c context)
+ "Usage:
+
+\\applyoutput #(set-output-property 'Clef 'extra-offset '(0 . 1))
+
+"
+
+ (let*
+ ((meta (ly:get-grob-property grob 'meta)))
+
+ (if (equal? (cdr (assoc 'name meta)) grob-name)
+ (ly:set-grob-property! grob symbol val)
+ )))
+
;;
(define-public (smart-bar-check n)
;; warn for bare chords at start.
(define (has-request-chord elts)
- (reduce (lambda (x y) (or x y)) (map (lambda (x) (equal? (ly:music-name x)
+ (reduce (lambda (x y) (or x y)) #f (map (lambda (x) (equal? (ly:music-name x)
"Request_chord")) elts)
))
(define (ly:music-message music msg)
- (let* (
+ (let*
+ (
(ip (ly:get-mus-property music 'origin))
)
)
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; switch it on here, so parsing and init isn't checked (too slow!)
+;;
+;; setting stuff for grace context.
+;;
+
+(define (vector-extend v x)
+ "Make a new vector consisting of V, with X added to the end."
+ (let*
+ ((n (vector-length v))
+ (nv (make-vector (+ n 1) '())))
+
+
+ (vector-move-left! v 0 n nv 0)
+ (vector-set! nv n x)
+ nv))
+
+
+(define (vector-map f v)
+ "Map F over V. This function returns nothing."
+ (do
+ ((n (vector-length v))
+ (i 0 (+ i 1)))
+ ((>= i n))
+
+ (f (vector-ref v i))))
+
+(define (vector-reverse-map f v)
+ "Map F over V, N to 0 order. This function returns nothing."
+ (do
+ ((i (- (vector-length v) 1) (- i 1)))
+ ((< i 0))
+
+ (f (vector-ref v i))))
+
+;; TODO: make a remove-grace-property too.
+(define-public (add-grace-property context-name grob sym val)
+ "Set SYM=VAL for GROB in CONTEXT-NAME. "
+ (define (set-prop context)
+ (let*
+ ((where (ly:context-property-where-defined context 'graceSettings))
+ (current (ly:get-context-property where 'graceSettings))
+ (new-settings (vector-extend current (list context-name grob sym val)))
+ )
+ (ly:set-context-property! where 'graceSettings new-settings)))
+
+ (ly:export (context-spec-music (make-apply-context set-prop) 'Voice)))
+
+
+(define-public (set-start-grace-properties context)
+ (define (execute-1 x)
+ (let*
+ ((tr (ly:translator-find context (car x))))
+ (if (ly:context? tr)
+ (ly:context-pushpop-property tr (cadr x) (caddr x) (cadddr x))
+ )))
+
+ (let*
+ ((props (ly:get-context-property context 'graceSettings)))
+ (if (vector? props)
+ (vector-map execute-1 props))))
+
+(define-public (set-stop-grace-properties context)
+ (define (execute-1 x)
+ (let*
+ ((tr (ly:translator-find context (car x))))
+ (if (ly:context? tr)
+ (ly:context-pushpop-property tr (cadr x) (caddr x))
+ )))
+
+ (let*
+ ((props (ly:get-context-property context 'graceSettings)))
+ (if (vector? props)
+ (vector-reverse-map execute-1 props))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; switch it on here, so parsing and init isn't checked (too slow!)
+;;
;; automatic music transformations.
(define (switch-on-debugging m)
(set-debug-cell-accesses! 15000)
- m
- )
+ m)
(define-public toplevel-music-functions
- (list check-start-chords
+ (list
+;; check-start-chords ; ; no longer needed with chord syntax.
voicify-music
-
+ (lambda (x) (music-map glue-mm-rest-texts x))
; switch-on-debugging
))
+
+
+;;;;;;;;;;;;;;;;;
+;; lyrics
+
+(define (apply-durations lyric-music durations)
+ (define (apply-duration music)
+ (if (and (not (equal? (ly:music-length music) ZERO-MOMENT))
+ (ly:duration? (ly:get-mus-property music 'duration)))
+ (begin
+ (ly:set-mus-property! music 'duration (car durations))
+ (set! durations (cdr durations))
+ )))
+
+ (music-map apply-duration lyric-music))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+
+
+(define-public ((add-balloon-text object-name text off) grob orig-context cur-context)
+ "Usage: see input/regression/balloon.ly "
+ (let*
+ ((meta (ly:get-grob-property grob 'meta))
+ (nm (if (pair? meta) (cdr (assoc 'name meta)) "nonexistant"))
+ (cb (ly:get-grob-property grob 'molecule-callback)))
+
+ (if (equal? nm object-name)
+ (begin
+ (ly:set-grob-property! grob 'molecule-callback Balloon_interface::brew_molecule)
+ (ly:set-grob-property! grob 'balloon-original-callback cb)
+ (ly:set-grob-property! grob 'balloon-text text)
+ (ly:set-grob-property! grob 'balloon-text-offset off)
+ (ly:set-grob-property! grob 'balloon-text-props '((font-family . roman)))
+
+ ))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; part-combiner.
+
+
+
+(define noticed '())
+(define part-combine-listener '())
+(define-public (set-part-combine-listener x)
+ (set! part-combine-listener x))
+
+(define-public (notice-the-events-for-pc context lst)
+ (set! noticed (cons lst noticed)))
+
+(define-public (make-new-part-combine-music music-list)
+ (let*
+ ((m (make-music-by-name 'NewPartCombineMusic))
+ (m1 (context-spec-music (car music-list) 'Voice "one"))
+ (m2 (context-spec-music (cadr music-list) 'Voice "two"))
+ (props '((denies Thread)
+ (consists Rest_engraver)
+ (consists Note_heads_engraver)
+ ))
+ )
+
+
+ (ly:set-mus-property! m 'elements (list m1 m2))
+ (ly:set-mus-property! m1 'property-operations props)
+ (ly:set-mus-property! m2 'property-operations props)
+ (ly:run-translator m2 part-combine-listener)
+ (ly:run-translator m1 part-combine-listener)
+ (ly:set-mus-property! m 'split-list
+ (determine-split-list (reverse (car noticed)) (reverse (cadr noticed))))
+ (set! noticed '())
+
+ m))
+
+(define-public (determine-split-list evl1 evl2)
+ "EVL1 and EVL2 should be ascending"
+
+ (define ev1 (list->vector evl1))
+ (define ev2 (list->vector evl2))
+ (define (when v i)
+ (car (vector-ref v i)))
+ (define (what v i)
+ (cdr (vector-ref v i)))
+
+ (define chord-threshold 8)
+
+ (define result
+ (list->vector
+ (map (lambda (x)
+ (cons x 'together))
+ (uniq-list
+ (merge (map car evl1) (map car evl2) ly:moment<?)))))
+
+ (define (analyse-events i1 i2 ri
+ active1
+ active2)
+
+ (define (analyse-span-events active evs)
+ (define (analyse-span-event active ev)
+ (let*
+ ((name (ly:get-mus-property ev 'name))
+ (key (cond
+ ((equal? name 'SlurEvent) 'slur)
+ ((equal? name 'TieEvent) 'tie)
+ ((equal? name 'Beam) 'beam)
+ (else #f)))
+ (sp (ly:get-mus-property ev 'span-direction)))
+
+ (if (and (symbol? key) (ly:dir? sp))
+ ((if (= sp STOP) delete! cons) key active)
+ active))
+ )
+
+ (if (pair? evs)
+ (analyse-span-events
+ (analyse-span-event active (car evs))
+ (cdr evs))
+ active
+ ))
+
+ (define (get-note-evs v i)
+ (define (f? x)
+ (equal? (ly:get-mus-property x 'name) 'NoteEvent))
+ (filter f? (map car (what v i))))
+
+ (define (put x . index)
+ (set-cdr! (vector-ref result (if (pair? index)
+ (car index) ri)) x) )
+
+ (display (list ri i1 i2 active1 active2 "\n"))
+ (cond
+ ((= ri (vector-length result)) '())
+ ((= i1 (vector-length ev1)) (put 'apart))
+ ((= i2 (vector-length ev2)) (put 'apart))
+ (else
+ (let*
+ ((m1 (when ev1 i1))
+ (m2 (when ev2 i2))
+ (new-active1
+ (sort
+ (analyse-span-events active1 (map car (what ev1 i1)))
+ symbol<?))
+ (new-active2
+ (sort (analyse-span-events active2 (map car (what ev2 i1)))
+ symbol<?)))
+
+ (if (not (or (equal? m1 (when result ri))
+ (equal? m2 (when result ri))))
+ (begin
+ (display
+ (list "<? M1,M2 != result :"
+ m1 m2 (when result ri)))
+ (scm-error "boem")))
+
+ (cond
+ ((ly:moment<? m1 m2)
+ (put 'apart)
+ (if (> ri 0) (put 'apart (1- ri)))
+ (analyse-events (1+ i1) i2 (1+ ri) new-active1 new-active2))
+ ((ly:moment<? m2 m1)
+ (put 'apart)
+ (if (> ri 0) (put 'apart (1- ri)))
+ (analyse-events i1 (1+ i2) (1+ ri) new-active1 new-active2))
+ (else
+ (if (or (not (equal? active1 active2)) (not (equal? new-active2 new-active1)))
+ (put 'apart)
+
+ (let*
+ ((notes1 (get-note-evs ev1 i1))
+ (pitches1 (sort
+ (map (lambda (x) (ly:get-mus-property x 'pitch)) notes1) ly:pitch<?))
+ (notes2 (get-note-evs ev2 i2))
+ (pitches2 (sort
+ (map (lambda (x) (ly:get-mus-property x 'pitch)) notes2) ly:pitch<?))
+ )
+ (cond
+ ((equal? pitches1 pitches2) (put 'unisono))
+ ((> (length notes1) 1) (put 'apart))
+ ((> (length notes2) 1) (put 'apart))
+ (else
+ (let* ((diff (ly:pitch-diff (car pitches1) (car pitches2))))
+ (if (< (ly:pitch-steps diff) chord-threshold)
+ (put 'chords)
+ (put 'apart))
+ ))))
+ )
+ (analyse-events (1+ i1) (1+ i2) (1+ ri) new-active1 new-active2))
+ )))))
+
+
+ (analyse-events 0 0 0 '() '())
+ (vector->list result))
+
+
+
+; (determine-split-list '((1 . 2) (3 . 4)) '((1 . 2) (3 . 4)))
projects / lilypond.git / blobdiff