Karl Berger has been played on NTS over 30 times, featured on 30 episodes and was first played on 14 January 2015.

Karl Heinz Berger (born March 19, 1935 in Heidelberg, Germany) is a musicologist with a PhD in Music Esthetics, jazz composer, jazz vibraphonist|vibraphone and jazz piano|piano player. Together with Ornette Coleman and Ingrid Sertso he founded the Creative Music Studio in Woodstock(N.Y.). During the 1990's he taught jazz music and ensemble playing as a professor in Frankfurt.

Most of his output has been rather experimental music, and he has been active in Free Jazz circles, recording with Carla Bley, Don Cherry, Lee Konitz, John…