> Why are the punctum and semi-brevis unified with U+1D147 and U+1D1BA > since, unless I err, they do not share the same value but only a > visual similarity Well... the rationale for that would be the same thing that unifies the "." in "3.14" and "Mr. Fung". However, in this case, it's true, that they might be better dis-unified and we are considering that. The PUNCTUM (brevis) most often has a slightly convex upper side and concave lower side while the square notehead of modern music is really square. Rick