Sequential OB-6 · Pixelquencer

Standalone Web MIDI page for the Sequential OB-6 (keyboard and desktop). Control change numbers from the official OB-6 Operation Manual 1.2, Appendix C. Chrome or Edge · HTTPS or localhost.

Channel setup

Keyboard

Octave

Velocity 100

Random note

Click or drag keys to play. Computer keys: A S D F G H J K L ; (white) and W E T Y U O P (black). Last played note can fill a sequencer step.

Sequencer

Tempo

Steps

Gate 60%

Random 0%

Other pages Sync with other pages

Sync with other pages: starting.

Click a step to toggle rest / note. Shift-click or use “Set from keyboard” after playing a key.

Last message: none

Source: Sequential OB-6 Operation Manual, version 1.2 (OB-6-Operation-Manual-1.2.pdf, https://www.sequential.com/wp-content/uploads/2021/02/OB-6-Operation-Manual-1.2.pdf), Appendix C: MIDI Implementation, Received Controller Messages (page 78) and Additional Continuous Controllers Transmitted/Received (page 80). Set MIDI Param Receive to CC in the globals. NRPN values are 14-bit, which this page does not send, so it sends control changes only. The control change table prints no value ranges, so every slider spans 0 to 127. Panic sends Note Off, All Notes Off (123) and All Sound Off (120); both are in the control change table.