How To Harmonize A Melody A guitar collection is basically just like an energetic microphone coil. For many years, powerful microphones have now been wired with the style coil attached with the principal of the microphone's transformer, and maybe not recommended to ground (‘floating'). The microphone's situation is normally attached to the wire shield, which is attached to the microphone amplifier's ground (see Rane's site for more discussion).
By and large, energetic microphones are very calm devices as a result of the combination of transformer isolation and healthy, flying transmission lines all through, as well as shielded, humbucking coils.
So why don't you guitars? Guitars are once overwhelmed by noise. Humbucking pickups are only a partial (though crucial!) solution. The obvious answer is to move practicing the guitar collection to a balanced production, as being a microphone. A similar idea was printed this 2001 patent application like this How To Harmonize A Melody?