Sarah CassLAKE, with Breathe Owl Breathe, Typhoon. Tractor Tavern, 5213 Ballard Ave. N.W., 789-3599. 9 p.m. $8. Eli Moore and Ashley Eriksson started the Olympia collective LAKE with every intention of touring as a Fleetwood Mac cover band. They ended up ditching that plan to write and record their own spacious, lulling pop songs, but the inspiration point is still obvious. LAKE’s most recent effort, last year’s Let’s Build a Roof (produced by Karl Blau and released by K Records) runs very similarly to Rumours – lively melodies peppered with tambourine rattles and Rhodes piano chords intermixed with smooth and easy tunes of jazzy guitar runs and velvety vocal harmonies. That sunny 70s retro atmosphere just never gets old. ERIN K. THOMPSONDark Dark Dark, with Shenandoah Davis, Tin Tree Factory. Sunset Tavern, 5433 Ballard Ave. N.W., 784-4880. 9 p.m. $6. The chamber-pop collective Dark Dark Dark boasts a wide range of members from New Orleans, New York, and Minneapolis. Their upcoming record, Wild Go, will be released in October and features lovely, bright vocals from Nona Marie Invie and sweet, lulling piano melodies. ERIN K. THOMPSONListen to “Daydreaming” by Dark Dark Dark from the fortchoming Wild GoAnd it’s Capitol Hill Block Party’s final day. Today’s lineup is:

The Dead Weather, Blue Scholars, The Dutchess and the Duke, Harlem, Cynic, Fresh Espresso, Victor Shade, Truckasauras, Villagers, Mad Rad, Flexions, Steel Tigers of Death, The Maldives, Real Estate, Book of Black Earth, Hey Champ, Horde and the Harem, Pepper Rabbit, Ravenna Woods, S, Grand Archives.