This concert, held on April 23, 1967, was not John Coltrane’s final live performance — he played one more gig, on May 7, before dying in July. And the recording is extremely raw, for a variety of reasons ranging from the acoustic inadequacies of the venue to the bleeding through of street noise to the poorly balanced mix. Bassist Jimmy Garrison is a pulsing wave of static; the drums — Rashied Ali behind the kit, Algie DeWitt playing the African Batá drum — clatter and crash. Alice Coltrane might as well not be there at all much of the time. Coltrane’s and Pharoah Sanders’ playing manifests as an unending series of hoarse screams, frequently panning from one speaker to the other so forcefully it’s like being smacked in the head. But with all that said, this blown-out recording that bridges the gap between free jazz and pure noise has the power to astonish in ways no more “polished” document can.