Master modern guitarist Joe Gore has built a truly cool instrument and demos it with some excellent playing and looping. Check out his digital laptop looping at 4:57 for terrific sound design ideas.
Any modern guitarist (or retro one for that matter), who doesn’t subscribe to Joe Gore’s Tonefiend website is missing out. If nothing else you must check out his analysis of the major germanium fuzz circuits released between 1962 and 1968. It is a magnificently researched and reported work. The only thing I would add is that some of the thinner sounding, lower gain fuzz circuits might find favor with players who are already overdriving their amplifiers and just want to add character to the amp distortion.