As it might be with a lot of husband-and-wife musical collaborators who populate our fair city (the Submarines and the Weepies come to mind), it must be tough being the family cat when the creative juices are flowing in the Matthew Beighley/Jacqueline Santillan household.

Beighley and Santillan are the principals in Wait. Think. Fast., the Echo Park quartet that makes moody dreampop that oscillates between indie-rock and Latin influences.

Beighley, a self-taught multi-instrumentalist, composes most of the music; Santillan contributes the melody lines and lyrics. He admits to being a rather plodding worker. “I tend to agonize over things,” he says, “and then she comes in and has flashes of inspiration. I'll work on something for five hours, and she'll overhear it, come in and in an instant have a finished melody. … Maybe I'm jealous of her in many ways.”

“He shouldn't be jealous,” Santillan says, playing the good spouse as well as the good lead singer, “because he sets up a perfect song for me to write something to.”

Their latest batch of songs, Luces Del Sur, comes out today, and Wait. Think. Fast. celebrates with a show tonight at the Echo featuring support from Light FM, Marvelous Toy and Future Ghost.

Elsewhere: Funeral Party, the East L.A. kids dance-punk kids who recently made NME's list of 2010's top 50 best new bands, kick off a residency at the Bootleg Theater. … U.K. singer-songwriter David Gray plays the first of two nights at the Greek Theatre behind the release of his ninth album, Foundling. (Ray LaMontagne opens). … And Philly glam-poppers Free Energy headline the Viper Room.

Also: Interpol's stint at Space 15 Twenty (wristbands distributed with new album purchase at some locales); Crooked Fingers (Eric Bachmann of Archers of Loaf) at Spaceland; Jason Reeves and Brendan James at the Mint; Elisabeth at the Troubadour; Luke Doucet and Girlyman at the Hotel Cafe; J. Irvin Dally at the Silverlake Lounge; A Pretty Mess at the Redwood Bar; Mestizo at Echo Curio; Kisses at Cinespace; and Little Teeth's free in-store at Origami Vinyl.

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