Get the available devices information.
Displays midi info in the console but no sound. Includes send but need check.
With sound but cracks after every note played.
With sound.
Make list of all midi notes with name and frequency.
Select device and then lowest and highest available midi note and play.
Use midi sliders and or knobs values to mix rgba background-color.
set up for drums (Roland e-drums).
show drum patterns.