David Gilmour Movie A guitar pickup is essentially much like a powerful mike coil. For decades, dynamic microphones have already been sent with the style coil mounted on the principal of the microphone's transformer, and perhaps not called to floor (‘floating'). The microphone's situation is usually attached to the wire shield, that will be attached to the mike amplifier's floor (see Rane's website for more discussion).
By and big, vibrant microphones are extremely quiet devices consequently of the combination of transformer isolation and healthy, flying indication lines throughout, as well as protected, humbucking coils.
Therefore why not instruments? Guitars are notoriously overwhelmed by noise. Humbucking pickups are only an incomplete (though important!) solution. The obvious answer is to float practicing the guitar pickup to a healthy productivity, being a microphone. A similar idea was printed this 2001 patent request such as David Gilmour Movie?