In the POLY mode, the OC-2 can now be played stably over an even wider range of notes. A new +1 octave sound can now be added, covering a wide range of 3 octaves. Another feature of the OC-5 is the smart POLY mode, a further evolution of the polyphonic octave first introduced on the OC-3 Super Octave that is fully compatible with chord playing.
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