5 Beams should always reach the middle staff line. The second beam
6 counting from the note head side, should never be lower than the
7 second staff line. This does not hold for grace note beams.
8 Override with @code{noStemExtend}.
14 \context Voice \notes\relative c {
18 \property Voice.Stem \override #'no-stem-extend = ##f
20 \property Voice.Stem \revert #'no-stem-extend