Music of the spheres is a philosophical concept about how music relates to the universe rather than audible music. This is an instrument that generates musical notes and selects which notes are being played by their assignment to a physical space. The space is based on triangles that form triadic harmonies. The position that the controller object is in designates which notes are to be played, and motion through the space causes modulation through different keys. In this video, the color orange controls the space.