Hi, consider the following code:
\version "2.20.0" { \override Beam.gap-count = 1 \repeat unfold 16 b16 \override Beam.gap = 2 \repeat unfold 16 b16 } Obviously no tremolo is coded, though setting 'gap-count (and 'gap relying on active 'gap-count) is respected. IR says: " gap-count (integer) Number of gapped beams for tremolo. " Thus at least IR is plain wrong and the question is: bug or feature? Cheers, Harm