I think song names – at least in these films – require the sort of deep background knowledge I’m trying not to require. i.e. I’m trying to avoid even using uncommon character names in the SDH cues. i.e. instead of “Jerjerrod” I’d say “Commander”.

Certainly whether it’s live music vs tracked music is relevant, and things like loud, soft, and some sort of adjective. I guess the test is – if you don’t know anything at all about Star Wars, how would you describe the music in a way that helps add to the film what the music adds, but without actually being able to hear the music.

It turns out it’s a less critical problem than I thought, since so much of the music is talked over and therefore loses any opportunity to subtitle without getting really crowded.