Midi Controller No Keyboard A best guitar pickup is basically much like an energetic microphone coil. For decades, active microphones have been wired with the style coil mounted on the principal of the microphone's transformer, and perhaps not introduced to ground (‘floating'). The microphone's event is usually linked to the cable shield, which is connected to the mike amplifier's ground (see Rane's web site for more discussion).
By and big, vibrant microphones are very calm units consequently of the mix of transformer isolation and balanced, floating sign lines throughout, as well as protected, humbucking coils.
Therefore why don't you guitars? Instruments are once affected by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious option would be to move your guitar pickup to a healthy productivity, just like a microphone. A similar idea was printed this 2001 patent request like this Midi Controller No Keyboard?