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Re: Question about scheme engravers
From: |
Neil Puttock |
Subject: |
Re: Question about scheme engravers |
Date: |
Wed, 20 Jan 2010 19:52:38 +0000 |
2010/1/18 Carl Sorensen <address@hidden>:
> First, you want to extract the music from the stream event, I think
>
> (ly:event-property event 'Music) (but I'm not sure about this step)
>
> Once you have the music, then you get the elements of the music:
>
> (ly:music-property music 'elements)
>
> Now, elements is a list of music elements, so you'll want to get the
> duration from the first element of elements:
>
> (ly:music-property (car elements) 'duration)
There's no need to do all this; ly:event-property will access
'duration directly from the event.
Regards,
Neil