Partcombine and \autoBeamOff

The function of \autoBeamOff when used with \partCombine can be difficult to understand. It may be preferable to use

\set Staff.autoBeaming = ##f

instead to ensure that auto-beaming is turned off for the entire staff. Use this at a spot in your score where no beam generated by the auto-beamer is still active.

Internally, \partCombine works with four voices – stem up single, stem down single, combined, and solo. In order to use \autoBeamOff to stop all auto-beaming when used with \partCombine, it is necessary to use four calls to \autoBeamOff.

\version "2.24.0"

{
  % \set Staff.autoBeaming = ##f % turns off all auto-beaming

  \partCombine {
    \autoBeamOff   % applies to split up-stems
    \repeat unfold 4 a'16
    % \autoBeamOff % applies to combined stems
    \repeat unfold 4 a'8
    \repeat unfold 4 a'16
    % \autoBeamOff % applies to solo
    \repeat unfold 4 a'16
    r4
  } {
    % \autoBeamOff % applies to split down-stems
    \repeat unfold 4 f'8
    \repeat unfold 8 f'16 |
    r4
    \repeat unfold 4 a'16
  }
}