In helping someone work on a font for Byzantine musical symbols (1D000 -1D0FF) we noticed that there was no encoding of either precomposed or combining symbols, despite the fact that many or most of them do not occur in isolation. As a result, using these symbols in plain text is not very practical, aside from employing the PUA for the necessary combinations. Chapter 14.10 of TUS 4.0 does note that the manipulation of these symbols is outside its scope. A couple questions:
1) Can anyone provide links to documents that would help better understand how this came about? 2) Are there currently any proposals to add combining versions of any of these symbols to the Standard? 3) Is anyone on the list aware of any markup language or composing applications (any platform) that can use the current encoding to produce Byzantine musical notation?
