Gianmaria Lari <gianmarial...@gmail.com> writes:
> Talking about midi, is there any way to to reduce or increase the tempo of
> some measures by a certain percentage instead of setting it to an absolute
> value?
>
> For example instead of:
>
> \tempo 4=100 a b c d
> \tempo 4=110 e f g a
>
>
> something like
>
> \tempo 4=100 a b c d
> \tempo 4=currentTempo*1.1 e f g a
>
Well, it's not pretty (but then one can try wrapping the prettiness into
a music function), but here goes:
\score {
{
\tempo 4=100 a b c d
\context Timing \applyContext
#(lambda (c)
(set! (ly:context-property c 'tempoWholesPerMinute)
(ly:moment-mul (ly:context-property c 'tempoWholesPerMinute)
(ly:make-moment #e1.1))))
e f g a
}
\midi {}
}
--
David Kastrup
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