If you own a Roland GP-8 guitar processor you might find that it is not too easy to edit. With the app 'Roland GP-8 editor by MrMartin' editing will be much easier. Please press 'F1' for help on the app.
What’s new in this version
Added MIDI tests for MIDI device and presence of GP-8 in order to avoid sudden shutdown. Also added dialogs to help troubleshoot some MIDI problems.