POLY 61 5 octave keyboard synthesizer. Programmable analog synthesizer with 2 osc. per voice.

The Poly 61M's built-in MIDI jacks let you send and receive high speed "messages" for control of (1) pitch and note timing (key data), (2) selected program number, and (3) release (damper pedal). In place of VCOs, the Poly-61M features two advanced-design Digital Controlled Oscillators (DCOs) per voice, for excellent pitch stability. DCO-2 can be programmed for different pitch intervals above DCO-1, creating rich harmonic textures and special effects.
A popular feature of the Korg Polysix and Mono/Poly, Chord Memory lets you play parallel harmonies using only one key and thick Unison soloing and bass sounds. You can also select the "Hold" mode for continuous sound after you take your hands off the keyboard. The full-function Arpeggiator memorizes and sequences both notes and chords, and can be synchronized with an external sequencer or rhythm machine. The Poly-61M can store and instantly recall 64 different programmed sounds. Programmed sounds can be edited and rearranged in any order.
The "Program Up" function lets you use a foot switch to advance to the next sound without ever taking your hands off the keyboard. The 8-second Tape Interface allows many sets of programs to be rapidly Saved and Loaded from tape, creating an infinite "Sound Library". The large alphanumeric display gives plenty of information about operations.