See here for some background with great cover scans - also you may find still some mp3 with more music from the concert there.
Jimmy Lyons, alto saxophone
Andrew Cyrille, drums
1. Spring Of Two Blue-J's (part 1) 16:05
2. Spring Of Two Blue-J's (part 2) 21:24
Recorded on 4 November 1973 at Town Hall, NYC.
UNIT CORE RECORDS 30551
(this rip from the Jazz View 008 CD - which was a bootleg)
Note: new links for a rip of the LP added - Thank you G!!!!