There is a wonderful world of effects out there, but maximizing their usefulness often requires modifying parameters on the fly—think Whammy pedal, or runaway delay feedback. Unfortunately, modifying parameters, and even engaging or switching off effects, tethers you to the pedal in a way that can hamper your visual performance.
There have been solutions: In 2014, Livid came out with Guitar Wing, which I covered in Guitar Moderne. It allows control of MIDI effects parameters right from the face of the guitar, unchained from pedals and standard hardware controllers. Source Audio’s Hot Hand, covered here, also permits free-ranging parameter control, either through MIDI (using the Neuro Hub), or through an expression input on the pedal or switching device. The folks at GTC Sound Innovations have come up with yet another solution that debuted at NAMM a couple of years ago and I recently got to put it through its paces. First watch the GTC folks demo some classic effects.