I've just recently been getting into Sonic Youth and bought Dirty. What are some suggestions for albums or songs to check out? My friend just sent me "Unmade Bed" and that's probably one of my favorite songs right now, but it's quite different from the stuff on Dirty. Do they also have a bunch of more mellow songs like "Unmade Bed" or is that a rarity?

I'm sure there's a few Sonic Youth fans here.. so set me on the right track.