What would be the correct way to engrave this? Space the 4 16ths
evenly, put the two 8ths above their corresponding 16ths and squeezing
the appoggiatura notes in? What if there's not enough place left for
them - should the 16ths then be spaced further apart (evenly) until it
fits? Even if this leads to the 16ths on beat 4 being spaced further
apart than those on beat 3?
Basically, this is what happens with strict-grace-spacing = ##t:
With the unfortunate flaw that it does _not_ achieve the thing about
"spacing the 16ths further apart if the grace notes take up too much space":
\version "2.22"
\layout {
\override Score.SpacingSpanner.strict-grace-spacing = ##t
}
<<
\new Staff \relative c'' {
a16[ g b a] g8[ \appoggiatura { g32 a g a g a } b8]
}
\new Staff \relative c'' {
a16[ g b a] e16[ d f e]
}
>>
There's definitely room for improvement in cases such as these. But also
here one should ask first: What would be the "correct" appearance?
That's not clear to me at all.
Lukas