Some amazing old footage from 1970 of Wendy Carlos demonstrating the classic MOOG synthesizer.  No preprogrammed patches or sounds here — it’s all constructed though something that looks like a wild pairing of a sci fi starship bridge coupled with an old-timey phone operator switchboard.  Also, no books or ways to save any settings, so you had to learn how to use it and re-create from scratch every time.  The craziest thing?  As an analog contraption, as the system warmed up (or cooled down) the sound output would change, thus requiring constant tuning as you played through a song or a concert.  But it’s hard to overstate the MOOG’s impact on electronically generated music, and to see such a pioneer of the genre give a little demo is pure delight.