An instrument for intensifying and making audible very feeble sounds. It produces its effects by the changes of intensity in an electric current, occasioned by the variations in the contact resistance of conducting bodies, especially of imperfect conductors, under the action of acoustic vibrations.
When I sit down to write a song, it's a kind of improvisation, but I formalize it a bit to get it into the studio, and when I step up to a microphone, I have a vague idea of what I'm about to do. Paul McCartney
I want to get to the point where one day I don't have to have anything but a rug and a microphone stand on stage and still be able to sell out places like Madison Square Garden, like Bruce Springsteen does. Demi Lovato