Moscow-based musician/engineer Dmitry Morozov has built an incredible instrument called the Metaphase Sound Machine. It produces music based on radioactive particles sensed by its built-in Geiger Counter. Just watch this video.

Morozov says his work was partly inspired by American physicist Nick Herbert, whose early experiments with sensing quantum entanglement resulted in the Metaphase Typewriter and Quantum Metaphone. Herbert's work mingled metaphysics with science in the 1970s, and apparently he hacked into some university computers in pursuit of Harry Houdini's ghost.

It makes sense that Morozov's tribute to this mad scientist blends the hard physics of radiation sensors with some seriously weird music. Here's the artist's description of how his musical instrument works:

The Metaphase Sound Machine is an object with 6 rotating disks. Each of the discs is equipped with acoustic sound source (a speaker) and a microphone. Each of the microphones is connected via computer and the rotary axis to the speakers on the disks. Also in the center of installation a Geiger-Mueller counter is set, that detects ionizing radiation in the surrounding area. The intervals between these particles influence rotation velocity of each of the disks. Essentially the object is an audio- and kinetic installation in which a sound is synthesized based on feedbacks, produced by microphones and speakers on rotating discs. Feedback whistles are used as triggers for more complex sound synthesis. Additional harmonic signal processing, as well as the volatility of the dynamic system, lead to the endless variations of sound. The form of the object refers to the generally accepted symbolic notation of quantum entanglement as a biphoton - crossing discs of the orbits.

You can find out more on Morozov's website.