2 texidoc = "Beams may overshoot stems. This is also controlled with @code{break-overshoot}."
18 % only works for the right edge, sorry.
19 \override Beam #'break-overshoot = #'(-0.5 . 0.5)
20 \set stemLeftBeamCount = #2
23 \set stemRightBeamCount = #3