Cantata 700

Mat from Techmoan takes a look at 3M's Cantata 700, a tape-based background music system from the '60s.
I've always had an affection for the (often-derided) instrumentals Muzak was originally known for and easy-listening music stations — the stuff that came back into vogue with the lounge revival at the recent turn of the century — from frequently hearing it in the Seventies.  Mat has an hour of music from the Cantata 700 available here. For more background music, check out this.