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To download GI20Editor from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.


By Amedeo Farello

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GI20Editor is a software editor for the Roland GI-20 GK-MIDI guitar interface.

Besides being the only alternative to programming the device through a knob, a two digit display and a few buttons, GI20Editor can greatly enhance the guitar/synthesizer connection experienced through the GI-20.

A detailed manual and a demo version are available at


• clear and easy access to all the GI-20 parameters

• save complete GI-20 setups as documents, for backup purposes and fast switching between different configurations

• import and export of GI-20 dump files

• patch related copy, paste and swap commands, plus a powerful 'paste special' function to apply only selected changes, possibly extending them to all patches at once

• direct connection to a MIDI synthesizer

• on-the-fly substitution of GI-20 bank/program messages to allow rapid testing of different sounds without the need of a “bulk load”

• optional MIDI system exclusive, bank/program change and control change messages sent at patch selection

• string grouping options for faster editing

• MIDI remote control

What's New in Version 2.1

• the app is sandboxed

• each patch can send up to 8 user defined MIDI Control Change messages for each string/channel to the “synthesizer output” device

• small user interface improvements


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View in Mac App Store
  • EGP259.99
  • Category: Music
  • Updated:
  • Version: 2.1
  • Size: 4.8 MB
  • Language: English
  • Developer:

Compatibility: OS X 10.6.6 or later

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