The second in a set of self-released instrumental EPs, SYR 2 follows through on the promise of SYR 1 while exploring new territory. A noisier record than its predecessor, SYR 2 nevertheless shares the same modus operandi -- namely, it's purely improvised music that gleefully wanders into uncharted territory. Even at its noisiest, the EP reveals that Sonic Youth has remarkable interplay. Each member can sense where the other will go, and that's what's so fascinating about the EPs -- there are no clear-cut themes, structures, or leaders, it's simply Sonic Youth without a harness. Toward the end of the record, the band ventures into quieter territory, immediately making clear their influence on such post-rock bands as Tortoise. Although SYR 2 is slightly less rewarding than SYR 1, its unpredictable, continually shifting sonics make for an endlessly intriguing listen.