Joel Chadabe has been played on NTS shows including The Imaginary Music Radio Hour w/ Laura Steenberge, with A City Called Heaven first played on 12 September 2017.

Joel Chadabe (born 1938) is a composer, author, and internationally recognized pioneer in the development of interactive music systems. He earned a BA from the University of North Carolina at Chapel Hill, then earned his MM at Yale while studying under Elliott Carter. His students include Liz Phillips, Richard Lainhart, and David A. Jaffe.

He designed the CEMS (Coordinated Electronic Music Studio), built by Robert Moog, in 1967. He was the president of Intelligent Music, "one of the several companies that distribute software and hardware for interactive composing," from 1983 to 1994. The Electronic Music Foundation was founded in 1994 by Chadabe. Chadabe was the curator at New York sound gallery Engine 27 in 2000-01. Chadabe was given the SEAMUS Lifetime Achievement Award in 2007. In a 2013 interview with Peter Shea, Chadabe discussed a variety of topics, ranging from the history of electronic music to his own work processes.