This is a variation on issue #34 (grace note synchronization) where
\stemNeutral gets ignored in one staff if there's a grace note in the other.
%%%
\version "2.25.18"
rightHand = \relative {
c'1 |
\grace { c8 } c2
}
leftHand = \relative {
\clef bass
\stemDown f,2 f |
% \grace { s8 } % <-- uncomment to fix the problem
\stemNeutral f,8\noBeam f'' c' d
}
\score {
\new PianoStaff <<
\new Staff \rightHand
\new Staff \leftHand
>>
}
%%%
The \stemNeutral in the left hand gets ignored unless you use a "spacer
grace note". This is probably not different enough to post back to the #34
issues page (which has a lot of discussion) but I thought I'd post it here
as it took me a little while to figure out.
--
Knute Snortum