|
From: | Gianmaria Lari |
Subject: | Re: tempo percentage |
Date: | Mon, 27 Nov 2017 09:51:41 +0100 |
Gianmaria Lari <address@hidden> writes:
> On 27 November 2017 at 07:39, Gianmaria Lari <address@hidden>
> wrote:
>
>>
>> On 27 November 2017 at 00:24, David Kastrup <address@hidden> wrote:
>>
>>> Gianmaria Lari <address@hidden> writes:
>>>
>>> > On 8 November 2017 at 18:15, David Kastrup <address@hidden> wrote:
>>> >
>>> >> Gianmaria Lari <address@hidden> 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?
>>>
>>
>
> Another question. It would be also useful to have a function that increase
> the tempo by a certain quantity (instead of a certain factor).
>
> I tried to modify the previous code in many ways using moment-add and
> make-moment but without success. This is an example that does not work:
>
> (ly:moment-add (ly:context-property c 'tempoWholesPerMinute) value)
>
>
> Any suggestion?
Scheme has no types known as "quantity". Neither has LilyPond. You
don't show how you get at `value'.
<URL:http://lilypond.org/tiny-examples.html >
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