Many enhancements have been asked for, and this is a proof that MusicTEX is considered as useful by many people. Some of these enhancements which seemed hard were in fact rather easy to implement, for example small notes to represent grace notes and cadenzas. But others may induce heavy problems, for example the need of having nice slurs and ties.
In the same way, we recently introduce Andreas EGLER's fonts to have nicer braces at the left of the score, for example for piano music.
Besides, we recently found a hard incompatibility of MusicTEX and a genuine product of the author's native country, namely french.sty by Bernard GAULLE which is the standard of the French TEX user group, namely the GUTenberg association. This was partly due to macro name collisions — easy to solve — and to the fact that french.sty sets a lot of characters as normalshapemediumseriesnormalshapemediumseries\active characters in order to make them handle correctly the French spacing before and after punctuation marks. This seems to have been solved in the 4.99 version of MusicTEX, with the restriction that French macros cannot be used — at least easily — within lyrics.
Besides, MusicTEX has been adapted — since version 5.00 — to score gregorian chant and percussion music.