Ming,
Bar 4 in both are identical. What is “wrong” in the second score? What is wrong with bar 6? There is only one example. What adjustment do you want to the beam in bar 5? Mark From: lilypond-user [mailto:lilypond-user-bounces+carsonmark=ca.rr....@gnu.org] On Behalf Of ming tsang Sent: Monday, August 29, 2022 3:51 PM To: lilypond-user <lilypond-user@gnu.org> Subject: Fwd: change Staff = Sorry forgot to include the .ly file. ---------- Forwarded message --------- From: ming tsang <ming.tsan...@gmail.com <mailto:ming.tsan...@gmail.com> > Date: Mon, Aug 29, 2022 at 4:18 PM Subject: change Staff = To: lilypond-user <lilypond-user@gnu.org <mailto:lilypond-user@gnu.org> > Dear lilyponders, When I run my full score I got the following warning message. warning: cannot find context to change to: Staff = right Then I copy few measure ( just the piano staff), there is no warning message, but (see below) bar #4 bar #6 are wrong. How to adjust the beam on bar #5? ming (lyndon) tsang -- ming (lyndon) tsang