> Thanks for the hack, it doesn't work quite right. This is because you have to adapt the construct to the actual bar content. In
<< { music_a } { music_b } >> The duration must be equal in "music_a" and "music_b" or you'll have bar check failures (and/or the music will not look like you would expect). E.g. for the bar with the half-note: | a4-> <<{c,2.->(\startTrillSpan}{s2 s4 s8 s16 s32 s32\stopTrillSpan}>> | Here the duration of "music_a" is "2." while for "music_b" it is "1". Hence, you should write: | <<{ a4-> c,2.->(\startTrillSpan}{s2 s4 s8 s16 s32 s32\stopTrillSpan}>> | Gilles _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user