Hi Peter, these letters are defined around line 2191 of scm/define-grobs.scm
Adding (not replacing "x") the "c" there turns every unknown number to c. But perhaps you can find your way from there. Even though I havn't seen anything else besides pima, I think your point about completeness is right and c is better than x. Do you have a reference for that? I found some occurences of "c" on the web but also "e": http://guitaralliance.com/p-i-m-a-unleashed/pima-in-detail/ Cheers, Joram _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel