At their best, Chicago's Cave boil down familiar but disparate branches of psychedelic rock into a sludgy yet nimble whole. Their first album approached different modes like a kid in a candy store, dipping into heavy riffs, hypnotic repetition, and howling noise, but it sprinted and lagged, never pacing itself as expertly as the band does now. Psychic Psummer is comparatively a less-immediate listen, but it is a deeper and ultimately more rewarding one. It's less of a wrecking ball and more of an assured roll, tumbling like an enormous slow-moving boulder through the band's diverse brand of burly and blissed-out space-rock.