Find of the day:
MusicKit/SndKit, an
Objective C-based sound/music framework that a lot of computer-music types
raved about in the NeXT-cube days. It has been ported to MacOS X, though for
some reason, it didn't want to actually make any sounds when I tried it.
Meanwhile, Apple's CoreAudio classes not only don't have any Objective C documentation, but they don't even seem to have headers yet for a lot of the classes
(which do look interesting). Hope they haven't forgotten about us...