Hot on the heels of their split 7" with Psychic Ills, Ripley and Sanae of Moon Duo have released "Sleepwalker," the first single off their new album, Circles, and it's a barn-burner (as opposed to a church-burner; no Norwegian black metal here).

They haven't changed their drone-oriented style, they've just amped it up a bit. And yet, there's something about the loping rhythm that recalls '60s beat-girl pop, specifically the Shangri-Las' "Walking in the Sand." The colorful cover also stands in contrast to the black and white design of Mazes, their full-length debut.

Inspiration for many of the songs' themes, as well as the album title, came from Ralph Waldo Emerson’s 1841 essay "Circles" on the symbol and nature of "the flying Perfect." From the opening lines: "The eye is the first circle; the horizon which it forms is the second; and throughout nature this primary figure is repeated without end." And so it goes. Rust never sleeps. [label press release]

Moon Duo plays Octopus Fest at LoFi Performance Gallery on August 25 with Lumerians, This Blinding Light, Rose Windows, Brain Fruit, Hair and Space Museum, and The The The Thunder. Plus, spinning from Dave Segal and Explorateur. $15 adv., 6pm, 21+. Sacred Bones releases Circles on October 2.