Alvin Lucier 1977 , MUSIC ON A LONG THIN WIRE

A 50-foot length of taut wire passes through the poles of a large magnet and is driven by an oscillator; the vibrations of the wire are miked at either end, amplified and broadcast in stereo. The thin wire is set vibrating four times at four different frequencies; what results is not the low drone one might expect from a long, vibrating wire, but a complexity of evocative, ethereal chords. First released on Lovely Music in 1980, Music on a Long Thin Wire is a classic example of Alvin Lucier's investigations into the physics of sound and the sonic properties of natural processes.