In the 2.6.4-1 release for Mac OS X, the bundle identifier
(CFBundleIdentifier key) in LilyPond's Info.plist is still
org.pythonmac.unspecified.LilyPond. There's a misspelled key
"CFBundleIndentifier" that *is* org.lilypond.lilypond--looks like a
typo happened at some point.