The thing everybody wants to know is, does the Sunshine Fix sound like the Olivia Tremor Control? Bandleader Bill Doss was half of OTC's braintrust, and what he takes with him on the Sunshine Fix's debut LP, Age of the Sun (Emperor Norton/Kindercore), are the ultracatchy hooks, the gear-shifting bridges, and those elaborate 60s-style harmonies. But Doss strips away the layers of sonic experimentation that distinguished OTC (who are now officially "on hiatus"): electronic manipulation contorts some piano riffs and vocal harmonies, and there's some beguiling percussive confusion on "See Yourself," but by and large the production favors clarity. The bass lines, which neatly anchor the melodies, are clean and well articulated; the drumming, reminiscent of Ringo Starr, is crisp; and Doss's thin voice cuts through everything, imperfections and all. While the album's tunefulness is hard to resist, without OTC's maddening ambition it sounds disappointingly normal. OK Go headlines. Monday, March 4, 9:30 PM, Empty Bottle, 1035 N. Western; 773-276-3600.