Hi,
Please have a look at the following example.
\version "2.21.0"
% The accent and the dynamic collide in an ugly way.
\new PianoStaff \with { \consists #Span_stem_engraver }
<<
\new Staff { \stemUp e''8 }
\new Staff { \stemUp \crossStaff { e''8->\f } }
>>
% This does not happen usually:
{ e''8_>\f }
% Actually we can reduce the example even more, althought it
% does no longer mean anything from the musical point of view.
\new Staff { \stemUp \crossStaff { e''8->\f } }
It seems that span stems confuse the algorithm that avoids vertical
collisions. Possibly linked with
[1]http://lilypond.1069038.n5.nabble.com/Cross-staff-slur-spoils-collis
ion-handling-td198796.html
Regards,
Jean Abou Samra
References
1.
http://lilypond.1069038.n5.nabble.com/Cross-staff-slur-spoils-collision-handling-td198796.html
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