The Infinite Guitar was created by Michael Brook, as a way of allowing an electric guitar note to be held with infinite sustain (hence the name). It consists of an electronic circuit that takes the signal from a standard guitar pickup, amplifies it, and feeds it back into a separate pickup coil. When set up and used correctly, the result is a continuous sustained note that can be used as is, or treated to create new sounds or emulate traditional instruments.
In addition to his own instrument, based on a Tokai Strat copy, Brook produced two Infinite Guitars, one of which belongs to Daniel Lanois. The other belongs to The Edge of U2, who famously used it on "With or Without You" from 1987's The Joshua Tree.
The principle has been the subject of patent litigation in the past, and is (or was) available commercially in several forms, including the Kramer Floyd Rose Sustainer, the Fernandes Sustainer and the Guitar Resonator.
Famous quotes containing the words infinite and/or guitar:
“Whatever we have got has been by infinite labour, and search, and ranging through every corner of nature; the difference is that instead of dirt and poison, we have rather chosen to fill our hives with honey and wax, thus furnishing mankind with the two noblest of things, which are sweetness and light.”
—Jonathan Swift (1667–1745)
“Swiftly in the nights,
In the porches of Key West,
Behind the bougainvilleas
After the guitar is asleep,
Lasciviously as the wind,
You come tormenting.”
—Wallace Stevens (1879–1955)