If there’s any debate as to why Seattle bands wear flannel, Say Hi settles it with this batch of glacial pop songs. Dude, it’s cold out. Probably has something to do with the darkness, of which Oohs & Aahs gives off plenty. Downbeat synth-rock for saddos and sappy suckers, this groove-inclined Death Cab-devoted collection avoids daylight like the Space-Needled city from which it hails.  But dejected tunes aren’t a kiss of death.  Nirvana, anyone? Speaking of, “Oh Oh Oh Oh Oh Oh Oh Oh” justifies its multiple ohs with a hooky acoustic shuffle straight out of Cobain’s “Polly.”  Just as fleet-footedly danceable and absurdly punctuated, “One, Two … One” sneakily retools TV On The Radio’s “Wolf Like Me” into a toe-tapping, could-be blogosphere slayer. More typical, though, “November Was White, December Was Grey,” carves out a cranky skater-boy vibe with acoustic plucking and the occasional electric riff. Eric Elbogen sings, “I’ll feel better when the winter’s gone,” but this hold-your-head-up chorus only gives you the feeling that the groundhog’s gonna see his shadow. Button up. - Robert J. Hilson