In FlexiMusic Orchestra you assign,1)Small piece of music beat: Choose any standard instrument/drum from midi bank. There are a lot of places in the Internet where you can download sound samples. We will provide links to these sites in our home page.2) Input devices: Computer Keyboard, Mouse, Joystick, Midi and other keyboard. You can use single or multiple input devices together. The input device can be any thing that DirectX can detect it.