Unusual 20th century compositions for prepared tuba, played by Zdzislaw Piernik. Produced by Gerhard Narholz. Recorded 1980 at Trixi Tonstudios, Munich, Germany. Sound engineer: Willi Schmidt. Photo: Gerhard Narholz. Original Publisher & Producer: Edition PRO NOVA, Sonoton Musikverlag-Musikproduktion, Gerhard Narholz, Munich, Germany.