The rapid evolution of digital media, advanced materials and other technologies is opening up unprecedented opportunities for musical interface inventors and designers. The possibilities afforded by these new technologies have prompted an explosion of new musical forms. Furthermore, they carry with them the challenges of a complex and often confusing array of choices for musical composers and performers. The design and evaluation of alternative musical controllers, currently the leading edge of an ongoing dialogue between technology and musical culture, involve many of the issues normally covered at CHI conferences. This workshop will explore the impact of new interface technologies on musical expression and exploration, discuss practical concerns involved in the design of effective musical interfaces, and attempt to identify major issues involved in the interplay between technological change and innovation in musical culture.