The playback buttons determine which of the 4 heads are heard with every pass of the delay cycle. The feedback buttons determine which of the 4 head positions will be sending the repeats back to the record head to be heard after the initial pass/delay cycle.
Each of the 4 head positions has its own tap division relative to the quarter note delay time of head 4. The tap division changes depending on the setting of the SPACING knob:
Here are some examples to help you (with the SPACING knob set to even):
Each of the 4 heads can be panned anywhere from hard left to hard right in the stereo field when using Volante’s outputs in stereo.
Additional Info on Panning