OTF versions of the LilyPond custom fonts

LilyPond uses custom fonts, primarily of the Feta and Emmentaler families. These custom fonts draw noteheads, accidentals, tuplet numbers, time signatures and curly braces. LilyPond also uses New Century Schoolbook for default letting in titles and credits.

LilyPond stores font information here:

/Applications/LilyPond.app/Contents/Resources/share/lilypond/current/fonts

LilyPond does not appear to install these custom fonts in the usual places in the filesystem such that other applications, like Illustrator and InDesign, can find them.

The LilyPond /fonts folder contains three subfolders: /otf, /svg and /type1.

If you use Apple's FontBook application to load the custom LilyPond fonts, those fonts in /otf will load perfectly. But the fonts in /svg and /type1 will not load at all.

The fonts in /svg duplicate the fonts in /otf and so probably aren't necessary under any circumstances to load with FontBook.

The fonts in /type1 are unique and, therefore, probably are necessary. The fonts end in .pfa and FontBook will not recognize them. The solution is to download FontForge and use FontForge to convert these .pfa fonts to .otf fonts. The FontForge UI requires the X11 client, which was available in the Utilities subfolder in my Applications folder without recourse to install discs for the MacBook. Double-click to start the X11 server before double-clicking to start FontForge. Then use FontForge to Open each .pfa by hand, and then Generate each .pfa as an .oft. Generate is apparently FontForge's term for convert or save-as. The process is tedious but works.

The resulting 33 new .otf fonts load correctly under FontBook.

I would publish the zipped file of the complete set of all 46 custom LilyPond fonts as .otf here, but I can't figure out how to get Blogger to let me upload a nonimage, nonvideo file.