For >3 years now: rip it on the Olive, edit it with Maestro, play it with Maestro, or Opus, or directly, or with the App, and studying Sqlite3.
I'm not a fan of Meastro, but at least it works for me, being myself a bit lazy and slow.
What I have discovered is that if you import FLAC files with "album artist" metadata into the Olive, these appear listed as a "composer" within the Olive's native database, which you can then browse. Problem solved!
That's not problem solved, that's a problem by itself. These guys are no composers.
I'm still figuring out how to get rid of them.