Yes, that is the idea - I am using UTF-8 files in Xcode (Mac OS X
10.4.10). I have also found a Unicode font Euterpe that does it
correctly:
http://openfontlibrary.org/media/files/Eimai/191
I also found (replies in the Unicode mailing list) some other Unicode
fonts, but U+1D19D is designed wrongly, as a Pralltriller, instead of
having only on peak and valley:
http://cg.scs.carleton.ca/~luc/music.html
http://users.teilar.gr/~g1951d/
http://cg.scs.carleton.ca/~luc/math.html
http://www.decodeunicode.org/en/musical_symbols
Cf.
http://www.unicode.org/charts/symbols.html
http://www.unicode.org/charts/PDF/U1D100.pdf
They have many other useful musical symbols, though.
So the question is how to choose musical symbols selectively from
different fonts, and the make say ornament symbols from that.