Play Demo Sequences

1. Press and hold the Main and Mix buttons at the same time to enter the Demo Sequence page.
2. Select a sequence using the Data Entry control. The Enter LED will be flashing.
3. Press the Enter button to begin playing the selected sequence.
4. Press the Enter button again to stop playing the sequence.
5. With the sequence stopped, press any other button to Exit demo sequence mode.

Source: Vintage Keys VK-6 keyboard — pk-6reve (manual)