This 2-CD set with electronic and instrumental music by Gottfried Michael Koenig (Edition RZ 2003–4) contains his works Zwei Klavierstücke, Suite, Streichquartett 1959, Terminus X, Funktion Grün, Funktion Gelb and the 60 Blätter für Streichtrio.
For more information:
https://www.discogs.com/Gottfried-Michael-Koenig-Gottfried-Michael-Koenig/release/1474092