My Digitech RP350 (“Modeling Guitar Processor”) has the ability to control almost any parameter with its expression pedal. Some of the things I’ve had fun playing with have been...
- Reverb depth
- Tremolo speed
- Amp gain
- The mix between the original signal and the harmony generated by the intelligent pitch shifter.
When I do this, though, I always wonder how might do it with individual pedals. Well, I chanced across a device that claims to do exactly that: the Third Hand by Tone in Progress. An expression pedal that appears to be able to mechanically turn a knob on an effects pedal.