> currentBarNumber must be an integer, so the value is computed at
> parsing time. If it could be a procedure, which evaluation would be
> delayed at music interpretation time, then it would be possible.
> That requires modifying LilyPond code (unless I'm missing
> something).
>
> For a possible solution, see the attached patch.
Thanks! However, I believe that this ad-hoc solution is too specific;
I can imagine that there are other useful applications which need
evaluation at music interpretation time. Any suggestion how to make
this more generic?
Werner
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