October 3 = 1936 Steve Reich; 1943 William McGlaughlin; 1946 Robert Snyder
The big first concert was on June 8, 1979 at New Music New York and Steve Reich and his ensemble were the first ever performers at New Music America on a night shared with Pauline Oliveros, Philip Glass, Meredith Monk and Robert Ashley. There is a 14 minute recording of that performance on the Kitchen retrospective double CD (which I don’t have) featuring David Van Tieghem, Gary Schall, James Preiss, and Richard Schwarz, but the y2b offers up a recording from 1971, and includes all four parts and a very large ensemble featuring many names who would appear at future NMA festivals.