I dabble in most music genres. That's largely because once every few years I'll get bored and decide to try something new, then I make my life about that new (to me) genre for the next few months. The obsession inevitably fades, but that doesn't mean I haven't made emotional connections in that time, so a lot of it sticks with me. However, if you took my iTunes library and said, "You have to delete everything except one genre," I wouldn't have to think hard about it at all: 90s alternative. A part of that is my oft-cited love of Sonic Youth, but I'd also be able to keep a lot of the sub-genres that I'm particularly besotted by: shoegaze,…