The upcoming I Bet on Sky is the 10th Dinosaur Jr. album, and it continues their second-phase streak of surprisingly terrific work, which began in 2007 when the original three members of the group got back together. Bucking the cash-in reunion trend, Dinosaur Jr. sounds as vital and mammoth as they did in their heyday, and their thundering guitar-driven rock has aged beautifully. This bill is all Dino from start to finish, too—Lou Barlow's Sebadoh and J. Mascis do turns as opening acts. NED LANNAMANN