We feel that the hula hoop controller is a novel yet practical application for human computer interaction. When playing a hoop, one is forced to move in visually entertaining ways, but more importantly the actions of the performer affect the musical outcome in a way that is clear to the audience.
In a general sense, we feel that the circular movement associated with the controller is desirable because it allows for continuous motion by a performer. Furthermore, this proposed version of the interface includes the following features which make it more musically expressive: smaller size at each sensor point, independent triggering at each point, control over timbral change, ability to switch between different playing modes, detection of direction, and tempo tracking.
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