P61-KBD: Korg Poly-61 MIDI Interface

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If you want to order the device:



The P61-KBD MIDI retrofit enables your Korg Poly-61 synthesizer to be integrated into MIDI systems. The retrofit controls instrument's keyboard.

The interface works in one direction only - it only receives MIDI data. The Poly-61's keyboard, control panel sliders and switches are not transmitted as a MIDI data! The interface controls instrument's keyboard in parallel manner - own instrument's keyboard can also be used together with the MIDI Notes (see picture below). No other control elements (switches, sliders, etc.) or sound parameters of the instrument are driven via MIDI and their status cannot be saved in the interface as a patch.

Block diagram


  • The instrument's keyboard is controlled manually and by MIDI Note On/Off commands simultaneously.
  • The keyboard can be transposed in whole range of MIDI notes 0~127.
  • Four modes of key priority can be chosen: Last / Higher / Lower / None.
  • The instrument's tone generators can be detuned (in semitone steps) by MIDI Pitch Bend command. The bend range is from 0 to ±24 semitones.
  • Any receiving MIDI channel or OMNI mode can be chosen by user.
  • Default values of all parameters are user programmable - they can be stored in internal memory of the interface.
  • All original features of the instrument are not changed and it can be used the same way as before the interface installation.
  • Installation of interface into the instrument is very easy.
  • The product is covered by thirty months warranty - more info

Interface's parameters adjustable by user (can be set via MIDI CC and SysEx Msg and stored in memory):

  • MIDI Channel (1 to 16 / OMNI)
  • Key Shift (+0 to +67 semitones)
  • Key Priority (Last / Higher / Lower / None)
  • Pitch Bend Range (+-0 to +-24 semitones)

MIDI implementation - receiving only:

  • Note On / Off (0~127)
  • CC 16 - Key Shift parameter setting (0~127)
  • CC 17 - Key Priority parameter setting (0~127)
  • CC 18 - Pitch Wheel Range parameter setting (0~127)
  • CC 64 - Hold
  • CC 120 - ASO
  • CC 121 - RAC
  • CC 123 - ANO
  • Pitch Wheel (0~16383)
  • System Exclusive - setting of all parameters and selection of MIDI channel (1~16 / OMNI)



Installation of all MIDI interface's parts into the instrument is very easy. No problem should occur if all instructions indicated in installation manual are kept.


P61-KBD MIDI kit package contains:

  1. MIDI Interface board
  2. MIDI socket with cable
  3. Coupling elements (screws, nuts and washers)
  4. Owner's and Installation manuals in printed form

Installed interface:



Document / SW Download Description
Installation Manual (Rev. 2) PDF document
Owner's Manual (Rev. 2) PDF document
MIDI System Exclusive Communication (Rev. 2) PDF document
SysEx Messages Generator (SW) ZIP archive with Java script based software for the device programming
Recommended MIDI Software Link to recommended MIDI software for SysEx Messages Generator




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Last update: 13.10.2019, Copyright © 1996-2019 CHD Elektroservis