Cryophone: A Dry Ice-Powered Musical Installation
 

[Dmitry] is a bit of an industrial artist / hacker, and he’s recently finished this interesting and interactive audio exhibit called the Cryophone.

As you know, dry ice is terribly fun. When placed in water, it sublimates from its solid to gaseous phase rapidly, releasing carbon dioxide gas and causing a drastic (and sometimes violent) temperature change. [Dmitry's] project attempts to amplify the sounds of these reactions and create music(?) using data from sensor inputs in the system. He uses piezo elements, temperature sensors, and an Arduino to generate an algorithmic composition from the various sensors, which a Mac Mini then synthesizes and outputs as audio in 6 channels.

http://hackaday.com/2013/12/17/cryop...8Hack+a+Day%29