Comment #8 on issue 2823 by [email protected]: Patch: Fixes position of mensural c clef
http://code.google.com/p/lilypond/issues/detail?id=2823
so the mensural c clef consists of _three_ breves? I must see that manuscript. (I never use glyphs that have an alternative Petrucci definition.)
and I fully agree with comment 4.
