Can L.A. City Councilman Jose Huizar rock a dancefloor? Will he take home a free set of headphones? Will anybody be able tell Proposition 15 from Questions 67 & 68 (sorry, bad classic rock reference) after DJ Jeremy Dawson's set tonight? Answers to these questions and more at the Echo, where California Common Cause mounts a benefit for the Yes on Proposition 15 campaign. [Background.] Didn't know there was a primary coming up? Get educated and dance — Dawson spins; San Diego's White Apple Tree and Buddy Akai play live sets; Huizar gives a speech; and Ultimate Ears gives away 300-plus sets of headphones. Which isn't bad for a 10-buck ticket and having to hear a pep talk from a politician.

Elsewhere: Excellent lineup at the Hotel Cafe, where the Ruby Friedman Orchestra is joined by Wheelhouse (the new project from the Broken West's Brian Whelan) and Bob Forrest & Zander Schloss. … Shane Alexander celebrates the release of his fourth album “Mono Solo” at the Mint. … The Bullets toast the release of their debut “Sweet Misery” at the Troubadour. … Jonny Lang jams at the Grammy Museum. … And it's Beatmo at the House of Blues.

Also: 3OH!3 and Cobra Starship at Club Nokia; the California's EP release show at Spaceland (HoneyHoney supports); Rocket and the Damn Sons play a free show at the Viper Room; First Aid Kit at the Bootleg Theater; Pacific Hurt (formerly Aushua) at the Silverlake Lounge; and Dark Tranquility at the Key Club.

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