Answer:
Chance Music
Explanation:
Chance music refers to a style wherein the piece always sounds different at every performance because of the random techniques of production, including the use of ring modulators or natural elements that become a part of the music. Most of the sounds emanating from the surroundings, both natural and man-made, such as honking cars, rustling leaves, blowing wind, dripping water, or a ringing phone. As such, the combination of external sounds cannot be duplicated as each happens by chance.
