Fred Hopkins has been played on NTS in shows including Angel Bat Dawid, featured first on 30 March 2014. Songs played include Air Song and Untitled Tango.

http://en.wikipedia.org/wiki/Fred_Hopkins

Fred Hopkins (October 10, 1947 - January 7, 1999) was a Chicago double bassist who played a major role in the development of the avant-garde jazz movement. He was a member of the avant garde jazz trio Air (with Henry Threadgill and Steve McCall) and David Murray's Low Class Conspiracy; he frequently worked with the cellist Diedre Murray. Hopkins played with a wide variety of musicians including Muhal Richard Abrams, Don Pullen, Hamiet Bluiett, Andrew Cyrille, Kalaparusha Maurice McIntyre, Sunny Murray, Kahil El'Zabar, Malachi Thompson, McCoy Tyner, Elvin Jones, David Murray, Anthony Braxton and Marion Brown.