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"This truly vintage and early synthesizer MTI Auto-Orchestra is a sophisticated electronic musical instrument made in the 1970's. It contains a drum machine, an accompaniment generator and a separate bass sound. It was designed to be an electronic instrument for the instrumental soloist with three-note chord accompaniment synthesizer and an advanced rhythm machine.
The chords, with a choice of similar sounds of a piano, an organ or strings, can be set (by outside switches) to be major, minor, dominant seven or diminished chord. The device also offers automated walking bass."

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