Am Mi., 8. Juli 2026 um 00:09 Uhr schrieb H. S. Teoh via bug-lilypond
<[email protected]>:
>
> It seems that \articulate is incompatible with trill spans, or has a bug
> in processing trill spans:
>
> Input (reduced from a large score):
> ```
> \version "2.27.2"
> \include "articulate.ly"
> \score {
>     \articulate {
>         d='''1\startTrillSpan
>         s2... s16\stopTrillSpan
>     }
> }
> ```
>
> Lilypond output:
> ```
> Processing `test.ly'
> Parsing...ice-9/eval.scm:159:9: Throw to key `numerical-overflow' with args 
> `("divide" "Numerical overflow" #f #f)'.
> ```
>
> Expected behaviour: at the very least, if \articulate is not compatible
> with trill spans, lilypond should display a more helpful error message
> indicating the offending line in the input.  The current behaviour is
> unhelpful because lilypond simply aborts, and the error message has no
> indication of what is wrong or which line in the input triggered it.
>
>
> T
>
> --
> My left eye said to my right eye, "Eye like puns!"  "Me too," came the reply. 
> "The cornea the better!"
>

Thanks for your report.
Its now https://gitlab.com/lilypond/lilypond/-/work_items/6949
Fix proposed:
https://gitlab.com/lilypond/lilypond/-/merge_requests/3084

Cheers,
Harm

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