I’m at the hospital, far from my library, and anyways not sure about exactly how Karim wants them to look or behave. I was just pointing out it’s nothing really exotic in contemporary music.
Anyway: An alternative approach, somewhat blunter but simpler \version "2.25.12" one = { s2 c'4 c'4 } two = { \temporary \override Stem.vertical-skylines = ##f \temporary \override Beam.vertical-skylines = ##f \override Beam.positions = #'( 18 . 18 ) c'8 8 8 8 \revert Stem.vertical-skylines \revert Beam.vertical-skylines c'4 c'4 } \new StaffGroup << \new Staff \one \new Staff \two >> > 19 aug. 2024 kl. 22:49 skrev Werner LEMBERG <w...@gnu.org>: > > >> Common beams for both staves, sometimes pulled outside them are used >> in contemporary music when the resultant rhythm from both staves of >> a single instrument are significantly easier to grasp than the >> separate rhythms of the separate staves. It also hints at both >> staves having a common voice or musical material. > > Please provide a scan of a real-world example to show what you really > want to achieve. > > > Werner