My sincere thanks to all who replied my questions. Now, one more question.
How to manually set the stems direction? for example, this is not an ordinary two voices, but rather an temporary two part lines: <{<f4 a> c8 c4 c8}\\{ s4 <f8 af> <f( af> <)g bf> <f af>}> In this case, the upper notes stem downward, and the lower notes stems upward; it's not what I want. Thank you again :) neuro http://neuro.ohbi.net [EMAIL PROTECTED] [EMAIL PROTECTED] _______________________________________________ Lilypond-user mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/lilypond-user