can a Scheme engraver "solve" Issue #34 (grace note bug)? [cross-posted]

[Kieren MacMillan]

Hi all,

Here’s the brainstorm I’ve currently got going:

Issue #34, a.k.a. the grace note bug, is one of Lilypond’s longest-standing and 
most newbie-unfriendly issues. It doesn’t appear in single-staff scores, 
obviously — only in multi-staff scores where one staff has a grace note [in the 
note code] and one or more other staves don’t.

So…

Can Someone™ write a Scheme engraver that listens for grace events and 
automagically adds grace skips of equal duration at the same moment in all 
other staves of a given score? *Intuitively*, \consist-ing that engraver into a 
score sounds to me like the perfect (Band-Aid™?) solution, modulo what is 
apparently a very difficult and/or time-consuming recoding of some deep 
fundamentals in Lilypond’s timing codebase.

Let me know if I’m just talking nonsense.
If not, let me know how I can help make this "fix" a reality.

Thanks,
Kieren.
________________________________

Kieren MacMillan, composer (he/him/his)
‣ website: www.kierenmacmillan.info
‣ email: address@hidden