Shanghai post-rock torchbearers 21 Grams bring an elegant maturity to their sound. Evocative and sincere, every song unfolds like a worn-in story, one that deepens with every retelling. While 21 Grams’s brand of post-rock is lean and old school, stylistically they cover a lot of ground - from the spacey, playful riffs to heartfelt catharsis - always managing to find the light at the end of the tunnel. The band is putting a bow on the Year of the Snake tonight at Cream Club.