This week i have been looking at new and old interactive musical devices! one being the 'Personal Orchestra'. it enables the user to simulate conducting an orchestra with real video footage in front of you and audio being played back in real time. the user can change the speed of the piece, the dynamics, basically all the things you can do as a conductor in real life. this is done so by actually using real conducting gestures and movement which is monitored by sensors. the amazing thing about this is how the video footage corresponds with slowing down the music. it apparently works very smoothly.
check out http://www.garritan.com/GPO.html
A more recent project existing is the 'Toy Symphony Maestro.'
The Music Toys developed by Tod Machover and his team at the MIT Media Lab for Toy Symphony are very sophisticated instruments designed simply to be played by any person with the desire to make music, with the specific needs and capabilities of young people in mind. There is no skill prerequisite-only the willingness to participate. There are three principal instruments used in the work for general audiences, and a fourth instrument for a more sophisticated musician. Through the use of Music Toys, children and adults alike can shape and modify musical lines with expressive gesture and delicate touch (Beatbugs, Shapers); use special software to draw lines that turn into musical compositions (Hyperscore); and also learn about the Hyperviolin, the latest in a series of enhanced expert performance instruments devised by the team. Each toy has a very specific musical and pedagogical function.