Near the start of this wildly abstract collaboration, Yoko Ono seems tocackle "Mwah-ha-ha!" amid the groans, chants, improvised poetry, and impressionistic sex noises. Humor was often part of the pioneering sound-arts he explored with John Lennon – alongside joy, fury, lust, and glossolalic craziness. And so it is here. Recorded in 2011 before Kim Gordon and Thurston Moore announced their separation, the voice-and-guitar cacophony might suggest avant-garde couples counseling to Sonic Youth fans. What's most remarkable, though, is how legible it all sounds. And maybe it should, since it distills the kind of audio radicalism these three have channeled into pop music for decades.