According to the Internet source given below, Günther Eisenhardt was a German composer , musicologist and university lecturer born in Gliwice.
He studied music education, composition and ear training in Halle (Saale) , Berlin and Dresden. He awarded the Wilhelm-Müller-Kunstpreis, Dessau in 1975 and the Mitteldeutsche Musikpreis in 1998.
He died in Dessau.
Websites:
Günther Eisenhardt
Biography by wikipedia.org.
Recorder Sheet Music
Aus dem Indianerleben (A/Piano)
20 pages.
Publisher: Breitkopf & Härtel (DV-32056)