http://www.youtube.com/view_play_list?p=C01271D3BEC0E9B9 The Korg MS-20 is a patchable semi-modular monophonic synthesizer which Korg released in 1978 and was in production until 1983. It was part of Korg’s MS series of instruments, which also included the single oscillator MS-10, the keyboardless MS-50 module, and the SQ-10 sequencer. Additional devices included the MS-01 Foot Controller, MS-02 Interface, MS-03… Read More The Korg MS-20 Analog Synthesizer