The essential New York rock band of the post-punk era, Sonic Youth care as much about the quasi-symphonic, microtonal art-guitar music of composers like Rhys Chatham and Glenn Branca as they do about the rock-song form, and with Daydream Nation, they struck their greatest balance between the two. The songs hover gorgeously for extended lengths, letting guitarists Thurston Moore and Lee Ranaldo intertwine fragile tonalities as carefully as it's possible to do at wall-shaking volume, while Moore and bassist Kim Gordon's untutored voices disaffectedly intone words that flirt with pop stupidity, high-art eloquence, and urban cool. When they bear down and rock, they do it with a blurry intensity that finds gorgeousness at the heart of discord. --Douglas Wolk