On 6 February 2018 at 23:09, <pe...@chubb.wattle.id.au> wrote: > >>>>> "peter" == peter <pe...@chubb.wattle.id.au> writes: > > >> I would like to change the trill speed in the midi output. I tried > >> to change the "#(define..." like in the following code but without > >> success. Any suggestion? > > > peter> When I was writing the trill code, lily tended to crash when > peter> trying to compress music so that the trill took the same length > peter> as the original note. I worked around it by fixing a trill's > peter> note length as a demisemiquaver in the current tempo. > > Sorry, forgot the scaling to current tempo. > > > #(define (ac:twiddletime music) > (let* ((tr (filter (lambda (x) > (and (eq? 'ArticulationEvent (ly:music-property x > 'name)) > (string= "trill" (ly:music-property x > 'articulation-type)))) > (ly:music-property music 'elements))) > (ac:targetTwiddleTime (ac:abs->mom ac:maxTwiddleTime)) > (pre-t (if (pair? tr) (ly:music-property (car tr) 'twiddle) > '())) > (hemisemimom ac:targetTwiddleTime)) > (if (ly:moment? pre-t) > pre-t > hemisemimom))) >
Peter, how should I use your code? How can I change the number of alternations between notes trill? Thank you, Gianmaria
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