Citing whimsical, prolific, minor-key songwriters like Randy Newman and Harry Nilsson as influences, OK Sweetheart's M.O. seems to consist of crafting delectable nuggets of pop music that equally serve the heart and the brain. Frontwoman Erin Austin's delicately lovely voice stands front and center and is buoyed by light-as-air instrumentation that drives with a gentle touch. It's all so clean and pristine, which helps to direct attention toward the modestly heartbroken lyrics. When an offbeat piece of production slips in (like the slightly blown-out drums on the title track of OK Sweetheart's debut LP, Home), the effect is novel, instead of distracting. OK Sweetheart has seemingly mastered the creation of the crystalline pop song - it's all refracted light and fragile form, constantly defying the ever-present possibility of shattering.

URBAN GRACE, WITH IVAN & ALYOSHA, ELK & BOAR, BEN FISHER, SATURDAY, APRIL 14, $8, 7:30PM, 902 MARKET ST., TACOMA