Which musical instrument was invented by the Italian Futurist and sound artist Luigi Russolo?
Correct answer: Noise intoner

Fun guy
I listen to music to counter urban noise, I don't want more ..

Laurie
Player #97184361, not true. The theremin and synths etc were also invented in the 20th century.

Player #97184361
calicot, The only instrument invented in the 20th century is the steel pans of Trinidad & Tobago. ! ! !