German composer from the 60’s, along the lines of John Cage, Reich, Riley, David Tudor: two long tracks from the early 70’s. Cool stuff that explores tape loops, found sound, vocal treatment, and the Moog. Certainly work that influenced Eno and all your other avante heroes. If you like this I highly recommend his 1982 work “The Book of Sounds” (Das Buch Der Klange).

1) 40 minutes: long minimalism combining early Moog, tape loops and found sound, looped woman’s voice auf deutsch “Ich” (translated: first person “I” or “me”) begins to degrade and tone shift, slow, after ~15 minutes turns into a Moog-fest for ~10 min, then returns to the word loops and overtones
2) 14.5 minutes: moog loops, with mournful Oboe melody