Ahoi! from Musik Von Harmonia by Harmonia, 1974
images: Inner sleeve of Musik Von Harmonia (studio in Forst, Germany) / Harmonia's gear during the recording of Musik Von Harmonia, Germany, 1973, from Michael Rother's myspace / Tacita Dean, Fernweh, 2008
Thanks T.E., I miss you.
(If any of the involved parties would like for me to remove the audio, please let me know.)