[Nick Zwar]

That’s interesting, because my music is filed without regard to genre. So in my CD shelf, “Madonna”, “Gustav Mahler”, and “Henry Mancini” are all next to each other or in close proximity.
Because I see music (like books or films) fits often into more than one genre, I do have my genres very generic, so there is “pop”, “jazz”, “classical”, “score” (or soundtrack), “ambient”, “electronic”… not much more.
If more programs supported multiple genres across the board, I’d assign multiple genres to lot of recordings.

So I’m not even sure if I have every main genre in my collection as defined by Thor.