Considering I’m the guy who wrote 2000 words about why I love Ashley Tisdale, I might not be the best judge of this. However, I’m going to say, all three. You’re musical tastes are certainly influenced by your genetics, but mostly, I think, by what your emotional connection to the music is. If you’re not in the right headspace, you might think the greatest album ever made (for arguments sake, lets say, The Beatles #1’s Album) is not that great. But now let’s say, you’re in a more emotionally vulnerable place, you might grow attached to an album that might be, for all intents and purposes, a not very good album (like a certain Ashley Tisdale album), but for whatever reason, it’s now important to you, for reasons only you and you alone understand.