What is a "Prepared" Electric Guitar?

The experimental composer, John Cage, wrote many compositions for "prepared piano," which is when various objects such as bolts, screws, pins, plastic, pieces of weather-stripping, rulers, rubber, etc. are inserted between the strings of a piano. As you can imagine, the sound of the instrument is greatly altered when the strings are "prepared" in this way. Usually one attempts to place the objects inside the piano so that the resulting notes and chords sound "good" or "musical" in some way. But "discordant" or "ugly" sounds are also permitted, since there are no rules in music.

Concerning the electric guitar, can we can extrapolate the prepared piano idea to that instrument? Of course we can. Fred Frith, an English guitarist, was probably the first person to prepare his guitar in the same manner as John Cage's piano. He would use metal, rubber, plastic, and other materials to place them between the guitar strings, then he would pluck, strike, rub, or scratch them with different objects, rather than use his fingers or a plectrum to execute the notes. Fred Frith also built his own guitar-like instruments for even more extensive exploration and experimentation with sound. As one example, he attached strings to a regular door once and then added electronics and pickups to make a large electric guitar.

Perhaps you would like to prepare your guitar with various objects and experiment with the different sounds that can be produced. I have done it a few times in the past and I can assure you it is a lot of fun.

Because this article deals with an experimental method of guitar playing, there will be no exact licks provided. And there will be no precise algorithms to follow either. To play with a prepared guitar all you will need is your imagination, a few household objects or materials you can find in your garage, and then it will be up to you how to play the "notes" after you have inserted the objects between the strings of your guitar (or on other parts of your instrument.) Be bold and strive to make good compelling music.