True, I agree with that. As I said, I am looking for ideas, not going to copy paste.
Well, if you're looking for some games that have some notoriety for their music, then I'd look at Being a Dik, Summer's Gone/Where it All Began, and Leap of Faith. The caveat here being that all are using expensive paid ($2500 USD) and/or contracted music. Something to be aware of is that some creators and platforms don't allow their music to be used in pornographic material. Just something to be aware of while you're looking for music.
That said, I'm not aware of too many AVNs/games that are known for their music using free/CC0 music.
I've gotten a couple compliments on Move The Chains for its music selection, which is largely made up of CC by 3.0 and 4.0 via FreeMusicArchive. But even then, if all goes well with a Steam release, I'm eventually going to go with Universal Production Music ($2500, though I've heard $5000 on the high end.). Though I'm looking at Storyblocks as a stopgap until then.