Analyze the role of noise in Futurist music and its impact on the subsequent development of experimental sound practices.

The Italian Futurist movement, emerging in the early 20th century, championed the dynamism, speed, and technology of the modern age, rejecting traditional artistic values and embracing the cacophony of industrial life. Noise, previously considered undesirable in music, became a central element of the Futurist aesthetic, reflecting the movement's fascination with the sounds of the machine age. The Futurists, led by figures like Luigi Russolo, challenged the very definition of music, advocating for the inclusion of all sounds, including those considered harsh and unpleasant, into musical compositions. This radical approach had a profound and lasting impact on the development of experimental sound practices. Russolo's influential manifesto, "The Art of Noises" (1913), laid the theoretical groundwork for Futurist music. He argued that traditional instruments were limiting and that the new sounds of the modern world—the rumbling of engines, the clanging of metal, the screeching of machines—should be incorporated into music. To achieve this, he invented a series of instruments called "intonarumori" which were mechanical noise generators designed to produce specific types of industrial sounds like hissing, screeching, and buzzing. While most of these intonarumori have not survived the test of time, they embodied the Futurist embrace of noise and are the first examples of instruments ....