From the pages of various musician' mags of the late 70s: The Collected Works of the PAiA Electronics marketing department. …
Strings & Things Memphis advert for keyboards circa 1977. Been looking through some mid-70s issues of "Contemporary Keyboard" (h.f. "CK")…
What is goin on here !? The May 1979 issue of DOWNBEAT magazine has a short article on the subject…