Anyone who misses ’90s greats like Dinosaur Jr. and Pavement should be thanking their lucky stars for Sadie Dupuis. The rare revivalist with originality, Dupuis’ four-piece band Speedy Ortiz writes smart, sludgy rock in a similarly downbeat vein. If you’re the type who likes to get out ahead of the trends, get thee to Go Bar to see the group on Wednesday; Speedy Ortiz’s latest LP, Major Arcana, dropped in mid-July, and by now it’s been your favorite music writer’s favorite album for weeks. Anchored by Dupuis’ sharp writing, guitarist Matt Robidoux’s nimble playing, Darl Ferm’s plump bass and punchy drums from Mike Falcone, Speedy Ortiz is a rare treasure these days: a real rock band. You don’t have to be a Malkmus devotee to appreciate these guys—just someone with ears.