Am Fr., 18. Juli 2025 um 19:06 Uhr schrieb Stefan Kägi <[email protected]>:
>
> Hi,
>
> it would be quite handy for me if I could use \featherDurations when
> specifying manual syllable durations:
>
> \version "2.24.4"
>
> music = \relative c' {
>
> \override Beam.grow-direction = #RIGHT
> \featherDurations 2/3
> \times 4/5 { c16[ c c c c ] }
> }
>
> words = \lyricmode {
> \featherDurations 2/3 { d16 d c d c }
> }
>
>
> \new Staff
> <<
>
> \new Voice = "test" {
> \music
> }
>
> \new Lyrics
>
> {
> \words
> }
>
> >>
>
>
> As far as I can tell this is not possible. I know, I could use
> addlyrics, but in the rest of the piece it works better for me if I can
> specify the duration of each syllable manually.
>
> Does anyone have an idea how to make this work or could someone help me
> with the math? Although I have read a thread about the calculation of
> feathered beams from a few years ago I am a bit struggling.
>
> Thanks!
>
featherDurations=
#(define-music-function (scale music) (scale? ly:music?)
(_i "Adjust feathered beam durations in @var{music} by @var{scale}.")
(let ((orig-duration (ly:music-length music))
(factor (scale->factor scale))
(multiplier 1))
(for-each
(lambda (mus)
(if (< 0 (ly:moment-main-denominator (ly:music-length mus)))
(begin
(ly:music-compress mus multiplier)
(set! multiplier (* factor multiplier)))))
(extract-named-music
music '(EventChord NoteEvent RestEvent SkipEvent LyricEvent)))
(ly:music-compress
music
(ly:moment-div orig-duration (ly:music-length music)))))
music = \relative c' {
\override Beam.grow-direction = #RIGHT
\featherDurations 2/3
\times 4/5 { c16[ c c c c ] }
}
words = \lyricmode {
\featherDurations 2/3 { d16*4/5 d c d c }
}
\new Staff
<<
\new Voice = "test" {
\music
}
\new Lyrics
{
\words
}
>>
HTH,
Harm
