This was the first disco record I ever bought. Zip's Records on University Avenue in Tucson, Arizona. February 1977.
Of course, the album cover shown in the video above was way too risqué back then, so it was issued in the States with this art instead:
C minor? what a key for love!
This is the cover on my copy. Didn't know there was an original. See, you do learn something every day!