I think this is caused by grace timing. As a workaround you could add a \grace s4 in the second staff, the clef change is behind the bar line.
See also http://lilypond.org/doc/v2.11/Documentation/user/lilypond/Grace-notes under Known issues and warnings. << \new StaffGroup = "strings" << \new Staff = "violinOne" \relative c'' { e4 e e e | \grace { a,,8[( a'] } % the trouble is here a'1) } \new Staff = "viola" \relative c'' { \clef "alto" a4 a a a \clef "treble" | \grace s4 a'1 } >> >> best regards, Wilbert Berendsen -- LilyKDE, LilyPond for KDE: http://lilykde.googlecode.com/ _______________________________________________ bug-lilypond mailing list bug-lilypond@gnu.org http://lists.gnu.org/mailman/listinfo/bug-lilypond
