I'm probably not going to do that, because I've never seen a game that worked like that while definitely being playable. I could be convinced to change my mind if you could show me counter-examples.
Oh, I wasn't thinking of game mechanics. Just using that as a theme for OSR contributions. Taverns noted for the bard competitions, singing monsters, a big bad that can only be dispelled via poem or song, music related spells and magical items.
