According to the Internet source given below, Heinz Werner Zimmermann is a German composer born in Freiburg im Breisgau.
he studied composition with Julius Weismann and Wolfgang Fortner in Heidelberg as well as at the Kirchenmusikalisches Institut Heidelberg,
He is best-known works are his sacred motets with plucked double bass, his organ psalms, and his "Prosalieder". Among his chief works are his Missa profana
, the sacred oratorio The Bible of Spirituals
as well as his Symphonia sacra
||Heinz Werner Zimmermann
||Biography by wikipedia.org.