ARP Mode explained:
Arp mode is an experimental modulation mode where repeats are pitch shifted by an LFO. In this mode the
delay time automates to get the desired pitch shift. For example, say you set the delay time to 500ms, if the
octave up mode is selected then the delay time will alter between 500ms and 250ms. What happens is when
the delay time shifts to 250ms all audio that was recorded while set at 500ms gets played back twice as fast
and so comes out an octave up. After a period of time the delay will shift back to 500ms and so when this
happens all audio will come out as an octave down. Adjusting the modulation depth control will select the
pitch shift (shown below), while setting the modulation speed adjust the frequency of the shifts (how often
they occur) - this is all synced to the tap tempo, adjusting the delay set the base delay time.