Wikipedia
The Minimoog is a monophonic analog synthesizer, invented by Bill Hemsath and Robert Moog. It was released in 1970 by R.A. Moog Inc. ( Moog Music after 1972), and production was stopped in 1981. It was re-designed by Robert Moog in 2002 and released as Minimoog Voyager. In May 2016, Moog announced a limited-run "pilot production" reissue of the Model D, to be launched at Moogfest.
The Minimoog was designed in response to the use of synthesizers in rock and pop music. Large modular synthesizers were expensive, cumbersome, and delicate, and not ideal for live performance; the Minimoog was designed to include the most important parts of a modular synthesizer in a compact package, without the need for patch cords. It later surpassed this original purpose, however, and became a distinctive and popular instrument in its own right. It remains in demand today, over four decades after its introduction, for its intuitive design and powerful bass and lead sounds.