3 Beams can be typeset over fixed distance aligned staffs, beam
4 beautification doesn't really work, but knees do. Beams should be
5 behave well, wherever the switching point is.
10 \context Staff
=one
\notes\relative c'{
11 \stemUp [c8 c \translator Staff
=two
\stemUp c c]
14 \stemDown [c8 c \translator Staff
=two
\stemUp c c]
16 \stemDown [c8 c \translator Staff
=one
\stemDown c c]
19 \stemUp [c8 c \translator Staff
=one
\stemDown c c]
22 \context Staff
=two
\notes\relative c'{