With a name like that, Jackie-O Motherf**ker is never going to be the kind of band you could take home to meet your parents.

Still, it'd be wrong to dismiss this Portland, Oregon, outfit as mere shock jocks. Their sprawling, magpie improvisations can be as noisy as a weekend in Baghdad, but they also embrace everything from spaced-out drones and found sound to traditional Americana and blues.

"Fig 5" (2000) included a singular take on that hoary old staple, "Amazing Grace," while "Flags of the Sacred Harp" (2005) centered around reinterpretations of songs from a 19th-century hymnbook. On last year's "Valley of Fire" album, the band revealed another unexpected influence: the 20-minute jam that closed proceedings was a loose reading of "She Watch Channel Zero?!" by influential hip-hop crew Public Enemy. And that's to say nothing of the Beach Boys cover that preceded it.