Analogue-sequencer

> Just wondering. Why are there in almost every design of the P3 four
> different colours of knobs for the pots used. Does that have a special
> reason, other than marking four groups of four, instead of a more
> obscure row of 16 ?

It's just a matter of personal preference.
Groups of colours help divide the 16 into the usual 4 beats.
Choice of colours is up to yourself. Some people have them all the one
colour, some have every step a different colour to the next.

Cheers,
Colin f