Re: vertical placement of trillspan and upbow

[Kwetal]

Hello,

Many thanks! outside-staff-priority works.
\once \override Script.outside-staff-priority = #1000

I also moved the \stopTrillSpan to the acciaccatura note because the 
trill must also sound for the duration of the g2, as Mark correctly 
presumed.
And, as Jean pointed out, I'll update to Lilypond 2.24, because the 
trillspan should stop just /before/ the acciaccatura...
Current result (with Lily 2.22):

Regards,
Arjen