For a decade now, Seattle-based Death Cab for Cutie has been an enormously popular alt-rock band whose silly name actually captures its sound: cute but creepy, funereal yet festive, with pristine melodies pre-washed in slightly ragged production. The band, fronted by the pleading tenor Ben Gibbard, tours in support of its new seventh set, Codes and Keys. This Sunday, Aug. 7. Doors at 6 p.m. Merriweather Post Pavilion, 10475 Little Patuxent Parkway, Columbia, Md. Tickets are $35 to $45. Call 800-551-SEAT or visit merriweathermusic.com.