Quoting Trevor Bača <address@hidden>:
> [Sidenote, however, that if you ever do want to install the lilypond
> fonts under OS X for some other purpose that it's somewhat difficult
> to do and involves stuff like using FontForge to make OTFs out of the
> Feta AFMs. I've done this last step and now have an archive of the
> OTFs, so if anybody needs them, let me know.]
I don't understand this comment. The installation packages for LilyPond
only contain OTF versions of the fonts, no AFMs, at least since version 2.8.