The goal of this project is to provide an interface that frees the 'laptop musician' from the laptop and in doing so, encourages more interactive performances within the genre of electronic music. This paper examines interactive systems that use motion and other sensors to control computer music applications and discusses interface design in this context. The various interfaces already tackling this goal demonstrate issues with regard to complexity, affordability and usability. We are particularly interested in interfaces that utilise simple design concepts to provide a flexible, intuitive controller that is appealing and affordable to a broad range of electronic musicians.