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## Re: Should \partial accept music instead of duration?

 From: Aaron Hill Subject: Re: Should \partial accept music instead of duration? Date: Sat, 19 Mar 2022 21:35:46 -0700

On 2022-03-19 7:53 pm, Dan Eble wrote:

On Mar 19, 2022, at 20:53, Aaron Hill <lilypond@hillvisions.com> wrote:
...

A convert-ly rule would probably not be possible given the limited power of regular expressions. As such, \partial might need to support both
duration and music arguments.  Initially I thought this might not be

possible, given that a naked duration can be treated as music; but the
following does seem to work:

...


I wouldn't want to have to explain to users why these turn out different.

\score {
\fixed c' {
\partial 4. 4.
}
}

\score {
\fixed c' {
\partial c4. c4.
}
}




Fair point, though the intention here would be that backwards compatibility would only need to exist for a time. A warning could be issued whenever a user applies the older syntax; this would inform the user of the impending breaking change while still allowing existing code to compile. When it is convenient, a future release would only support music as the argument.


-- Aaron Hill