The Norddeutscher Rundfunk, Hamburg was responsible for the studio production of the 1956 recording, with Dr. Helmuth Wirth as editor.
Another recording on this album was made at Norddeutscher Rundfunk, Hamburg on October 2, 1956.
The 1956 recording was licensed by Studio Hamburg Enterprises GmbH.
Some of the recordings on this album were made at Radiostudio Zürich on August 8-10, 2017, and April 19-21, 2017.
Andreas Werner of Silencium Musikproduktion served as Recording Producer, Editor, Engineer, and Masterer for some of the tracks.
