Reference
Hattwick, Ian and Marcelo M. Wanderley (2015). “Interactive Lighting in the Pearl: Considerations and Implementation”. In: Proceedings of Conference on New Interfaces for Musical Expression. Baton Rouge, LA, USA, pp. 201-204.
Abstract

This paper begins by providing a brief description of the Pearl and its use as a spherical instrument. We then discuss mapping the Pearl both to generate sound and control its interactive lighting, and identify different strategies for its use. Strategies we identify include feedback regarding performer gesture, information about the state of the instrument, and use as an aesthetic performance component.