Hi Robert,
This perhaps. By no means unacceptable.
===
\version "2.19.81"
treble = {
\clef treble
\time 3/4
<<
{
\voiceTwo
f'4\rest \crossStaff { <e' a'>4 <e' aes'> } |
}
\new Voice
{
}
>>
}
bass = {
\clef bass
\time 3/4
<<
{
\voiceTwo
c2.
}
\new Voice
{
\voiceFour
a4\rest a4 b |
}
\new Voice
{
\voiceTwo
s4
\once \override NoteColumn.force-hshift = -1.9
\once \hide Stem
bes4
\once \override NoteColumn.force-hshift = -1.9
\once \hide Stem
c'
}
>>
}
\score {
\new PianoStaff
<<
\new Staff = "treble" \with {
}
{ \treble }
\new Staff = "bass" \with {
}
{ \bass }
>>
\layout {
\context {
\PianoStaff
\consists #Span_stem_engraver
}
}
}
===