>> If I really wanted a breathe mark after a grace note in another
>> voice (without grace notes), I would explicitly write
>>
>> ```
>> c1 \grace s8 \breathe
>> ```
>>
>> This works just fine, BTW.
>
> Except that the note gets cut short in the MIDI.
Indeed, I haven't checked MIDI. Looks like a buglet to me.
> What I am saying is that not every surprise is a bug, and not every
> interaction around grace notes in other contexts is issue 34.
Then we have to agree to disagree. For me, the issue we are
discussing here is a bug. In any case, we should probably improve the
documentation, mentioning potential problems with grace issues for all
affected grobs (and the current work-arounds, including MIDI).
Werner