Recorded live at the Ann Arbor Blues & Jazz Festival on September 8, 1972, it is actually incomplete: as producer John Sinclair writes in his liner notes, “The opening sections are not available because a proper mix could not be achieved until several minutes into the performance.” It’s a decent, energetic slice of the kind of music typical of Ra’s performances during this time, moving back and forth from June Tyson’s moving, incantational vocals to freer instrumental passages highlighting Ra’s organ. Those passages, not unexpectedly, get freer and freer until they teeter on the edge of bursting, sometimes putting wailing brass, Ra’s careering “space organ,” or pummeling percussion at the forefront. The sound is quite good.