Ming,
In m66, and m67 you have an unassigned number, i.e. a 4.
Your time signature is ¾, yet there are 4 beats written in the first measure
of the upper voice of the screen shot.
Mark
From: lilypond-user-bounces+carsonmark=ca.rr@gnu.org
[mailto:lilypond-user-bounces+carsonmark=
Hello Ming,
if you have a look into the documentation for \change (when in doubt,
look it up in the command index), you’ll find that it does not require
any braces following or indeed any argument. It looks like you try to
enter the notes in parallel, which is illogical, since they are
sequen
