Re: Scheme predicative types

[Aaron Hill]

On 2020-09-17 3:18 am, Lukas-Fabian Moser wrote:
> I think what triggered my feeling uncomfortable was just the slight
> mismatch between the name of the predicate (tempo?) and the actual
> tests it contained. Maybe some verbose thing like
> music-with-tempo-definition? would make things clearer.

I likely erred too far on the side of brevity.

On review, I probably would ignore the custom type predicate altogether, 
simply using ly:music? instead.  Then within the function body add in 
the logic to extract the \tempo command and provide meaningful 
diagnostic messages to help users with the function should the provided 
music not be appropriate.


-- Aaron Hill