The musical arc of Chico, California's Garrett Gray has burst beyond the barebones confines of blasé roots-rock and into a more fully realized Americana stomp. With his band the Perpetual Drifters, Gray's released two full-lengths and an EP—capped by the group's most recent, 2011's Waiting for Saturn, a meditation replete with peppy leads and Gray's earthy vocals anchoring feel-good/feel-bad anthems. Along for the ride as part of the Cosmic Romance Tour is San Francisco-based Uni and her Ukelele, a formidable anomaly slinging old-time melodies with modest four-stringed arrangements and loads of sultry harmonies. It's a vintage California tag-team toting sunny songs just in time for our early summer, and you'd do well to embrace it. RYAN J. PRADO