Bitcoin, the decentralized virtual currency now worth over $1 billion, was designed to be as open and transparent as possible. Unlike traditional currency, you can download every Bitcoin transaction that's ever taken place and, more interestingly, tap into those transactions in close to real time. Using this freely available data, University of California student Maximillian Laumeister created "Listen to Bitcoin," a website that generates soothing chimes for every transaction that takes place on the Bitcoin network.
via The Verge - All Posts http://www.theverge.com/2013/3/31/4168542/listen-to-bitcoin-in-real-time