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; Splits the current chord/note to several others of the same pitch. Their sum equals the original duration. Will create tuplets if necessary
; So far only (assuming quarter) 8th, 8th-triplet, 16th, 16-fifthlet, 16th-sextlet, 16th-Seventhlet, 32th and 32th-ninthlet
; TODO: What about if someone tries to divide too small? The score will get broken.
(define* (SplitChord #:optional (howmany #f))
(define (split-divide)
(duration::ChangeNoteDurationInTicks (/ (duration::GetBaseDurationInTicks) 2) (d-GetDots)))
(if (Note?) ; DuplicateChord only works ON notes, not in the appending position.
(begin
(if (not howmany)
(begin
(set! howmany (d-GetUserInput "Split in how many notes?" "Enter the number of notes to split into:" "2" ) )
(if howmany (set! howmany (string->number howmany)) #f))) ; If the user pressed "Abort" or Esc howmany will be #f which must be caught here
(case howmany
((1) #t) ; Already original duration in one note.
((2) (begin ;8th
(split-divide)
(d-DuplicateChord)
(d-MoveCursorRight)
#t))
((3) (if (= 1 (d-GetDots))
(begin
(d-RemoveDot)
(d-Diminish)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
#t)
(begin ;8th-triplet
(d-StartTriplet)
(split-divide)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
(d-EndTuplet)
#t)))
((4) (begin ;16th
(split-divide)
(split-divide)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
#t))
((5) (begin ;16-fifthlet
(split-divide)
(split-divide)
(d-StartTriplet)
(d-MoveCursorLeft)
(d-SetTuplet "4/5")
(d-MoveCursorRight)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
(d-EndTuplet)
#t))
((6) (begin ;16th-sextlet,
(split-divide)
(split-divide)
(d-StartTriplet)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
(d-EndTuplet)
#t))
((7) (begin ;16-Seventhlet
(split-divide)
(split-divide)
(d-StartTriplet)
(d-MoveCursorLeft)
(d-SetTuplet "4/7")
(d-MoveCursorRight)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
(d-EndTuplet)
#t))
((8) (begin ;32th
(split-divide)
(split-divide)
(split-divide)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
#t))
((9) (begin ;32th-ninthlet
(split-divide)
(split-divide)
(split-divide)
(d-StartTriplet)
(d-MoveCursorLeft)
(d-SetTuplet "8/9")
(d-MoveCursorRight)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-DuplicateChord)
(d-MoveCursorRight)
(d-EndTuplet)
#t))
(else #f); out of range
))
#f ; it was no note
))
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