[Andy] came across this guitar midi controller project from way back ... pickups but instead of extrapolating fret data from the pitch picked up on the string, there is a second sensor mechanism ...

There is a Drop/Capo Sequence mode for transposing your electric guitar into ... be controlled by MIDI. And for any player who has grown bored of common or garden variety pitch shifters and ...

[Robert] wrote a program using Max/MSP that lets him make music with his guitar hero controller ... and allows a sort of ‘live play’ or midi mapping mode. In the midi mode each key can ...

Check out this Raspberry Pi Pico system for a sound-effect pedal for use with electric guitar. Not Rock 'n' Roll but Pitch 'n' Roll.