Our collective passion for music and interaction led to the creation of TouchTones, a multi-user collaborative music maker that doesn’t require any musical knowledge in order to make something beautiful. TouchTones was the first third-party freeware application for the  Microsoft PixelSense interactive table. The application was created in order to demonstrate best practices for designing for this unique platform. Up to four users can make music together on four instruments distributed across four octaves, all playing to a master tempo.