Compatibility test
Use the controls on this page to test your system's compatibility with KDx.
Select a compatible synth from the list of MIDI ports, and use the controls
to adjust the volume, filter cutoff and resonance of the currently-loaded sound.
If you don't see any synthesizers in the MIDI port list, you may have prevented your
browser from accessing MIDI devices, or your synthesizer may not be correctly connected
to the system.