Wiki information Leidlein:

John Leidlein
Man, Person

John Leidlein is an Austrian scientist most known for his work with water. Leidlein was born in 1953, and grew up in the town of Fucking, Austria, with his parents. His father was not around much due to working with Austrian Airlines. He was curious...

Des Knaben Wunderhorn: Wer hat dies Leidlein erdacht ? (Who thought up this song ?) bass
Canonical Version, Musical Recording