GI20Editor is a software editor for the Roland GI-20 GK-MIDI guitar interface. Besides being the only alternative to program the device through a knob, a two digit display and a few buttons, GI20Editor can greatly simplify your life in experiencing the combination of guitar and synthesizer.

Clear and easy access to all the GI-20 parameters.

Saving and reloading of settings as documents, allowing backups and fast switching between completely different configurations.

Import and export of GI-20 dump files.

Copy, paste and swap patches commands, plus a "paste special" command to apply only selected changes, possibly extending them to all patches at once.

Direct driving of a MIDI synthesizer.

MIDI remote control.

On-the-fly substitution of GI-20 bank/program messages, to allow rapid testing of different sounds without the need to do a "bulk load".

Additional MIDI system exclusive message and bank/program change messages sent at patch selection, to properly setup the synthesizer.

String grouping options for faster editing.

A comprehensive user manual is available.

The latest Mac OS X version is 2.0.0. It's a 32/64-bit Intel fat binary that runs on 10.6.6 (Snow Leopard) and later versions.

A DEMO version is available here. The demo version cannot save files or send data back to the GI-20 unit. In addition, MIDI output directed to synth stops after 15 minutes.

Dear Macintosh buyers, thank you! But if you like this application, please take the time to write a review in the Mac App Store. Good ratings help sales, and the sale of a reasonable number of copies justifies any further development.

The latest Windows version is 1.5. It's a 32-bit application that runs on XP, Vista and 7 and is distributed as shareware. This means that if you use this software, you are required to make a donation through the PayPal button below.

Click here to see the terms of the license agreement under which the Windows version of the software is distributed.