3 Beams should always reach the middle staff line. The second beam
4 counting from the note head side, should never be lower than the
5 second staff line. This does not hold for grace note beams.
6 Override with @code{noStemExtend}.
12 \context Voice \notes\relative c {
13 [f8 f] [f64 f] \grace { [f8 e8] }
14 \property Grace.Stem \override #'no-stem-extend = ##t