The Cosmic Piano is designed to detect elementary particles called muons, which are generated by the arrival of cosmic rays on Earth. When the muons hit a module, sounds and flashes of light are produced, making visible these particles that cannot be seen with the naked eye. . In this way, we can create a randomly generated melody due to the nature of cosmic rays and, at the same time, show what particle detection is like, using the same principle of operation that is used in high-energy physics experiments.