"Visit http://absolutmachines.com to interact with the machine. Hours: 9am-11pm EST. As seen in the beginning of the video, the visitor to the site enters a melody on their computer keyboard. The machine then uses this melody to generate an original and unique 2 1/2 minute piece of music. The web visitor also receives a link to a webcam video of their piece being played."
View the entire chart: 12 mesmerizing kinetic sculptures (videos)