+ %% the same goes for tremolo beams
+ \override StemTremolo #'beam-thickness = #0.32
+ %% NOTE: in lily/stem-tremolo.cc, we have length-fraction = 1,
+ %% and the tablature staff space is scaled (1.5 by default),
+ %% so we use the inversion of the scale factor:
+ \override StemTremolo #'length-fraction = #(lambda (grob)
+ (/ 1 (ly:staff-symbol-staff-space grob)))
+ \override StemTremolo #'beam-width = #stem-tremolo::calc-tab-width