John Coltrane's 1966 Temple University Concert is to be released in September by Impulse! and Resonance. The concert, titled Offering, includes Alice Coltrane on piano and Pharoah Sanders on reeds and flute. Rashied Ali was booked to play drums but couldn't attend, so his brother Muhammad Ali, filled in. Sonny Johnson (probably) played bass, although this isn't sure, because no string bass can be heard on the audio recording. (More documentation on those details here). Some of the audience reportedly walked out at hearing a "spew of untempered and unmetered sounds".
The concert has been remastered, and will be released on 2CD and 2LP, with a 24 page booklet with liner notes, on 23 September.