Control the Behringer RD-9 in your browser over WebUSB / WebMIDI - edit device settings, run the step sequencer, record MIDI and check firmware, no install or drivers. Functions: General, Sequencer, Update. Also known as RHYTHM DESIGNER RD-9.
Official app: SynthTribe. Connection: WebUSB discovery + WebMIDI SysEx.
Variants: RHYTHM DESIGNER RD-9.