The Anthony Braxton bootleg we wrote about last month has now been released. The audio was recorded at the Carnegie Recital Hall on 10 June 1972, when Braxton was 27. It was made with two tiny microphones taped onto the arms of a pair of sunglasses, and is the only known recording of the solo performance.
It's available now, free for Tri Centric Foundation members until 15 January, or $6.99 (going up to $8.99 next month). More details here.