Something about Day of the Woman, the new album by the eponymous Houston/Albuquerque producer collective released (for free download!) on local label Exponential, seems willfully mysterious. There’s no band bio info on the Exponential website, no explanation of what to expect from the seven electro-instrumental songs (plus seven remixes). Beginning with noisy hisses and clicks on “Cassette Tape,” Day of the Woman is best listened to under the cover of (real or metaphorical) darkness. Infusing avant-garde, drone, grime, and industrial into its soundscapes, Day of the Woman’s songs each carries something a little sinister inside their minimal production. While the originals are slow and spare, re-mixes, like Ape School’s upbeat take on “I’d Be Insane to Say It,” and local Mexican with Guns’ glitchy reinterpretation of “Jennifer Hills,” make Day of the Woman a bit more accessible. But it still sounds best with the lights out.