* Click here to visit our new Roland website.


Guitar Synthesizer

UpdatesGR-20 Updater for Bass Compatibility

This updater makes the GR-20 compatible with basses equipped with GK-2B/GK-3B divided pickup. The tracking capability is the same as the GI-20. Play GR-20's amazing synth sounds and realistic acoustic sounds with your bass.


This update is via MIDI, therefore a MIDI sequencer is required to transfer the SMF files to the GR-20. Depending on the sequencer, it may not be able to playback large amount of system exclusive messages. Using the UpdSMF below is recommended.

License Agreement

Be sure to read the Safety Instructions and the License Agreement before proceeding download.

Download file

Supplementary file

ダウンロード (92.0 KB)

ダウンロード (38.0 KB)

ダウンロード (115.0 KB)

To the top of page