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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 simplify the guitar/synthesizer connection experienced through the GI-20.


  • 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 GI-20 dump files.
  • Patch related copy, paste and swap commands.
  • Direct connection to

What's New in GI20Editor

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.

Requirements for GI20Editor

  • OS X 10.6.6 or later
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GI20Editor User Discussion

Current Version (2.x)
Downloads 422
Version Downloads 164
License Demo
Date 11 Jan 2013
Platform Intel 64 / OS X / Intel 32
Price $13.99
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