Abstract: A musical instrument controller provides an array keyboard in which most note triggers form major 3rd, minor 3rd, and perfect fifth intervals at line segment boundaries with adjacent note triggers, and form major and minor triads at vertices or other convergence points where three note triggers meet. The segments and vertices provide for single-finger triggering of intervals and triads. After-pressure and movement in the array plane (even crossing trigger boundaries) provide for three dimensions of per-key continuous control.

Abstract: A musical instrument controller provides an array keyboard in which most note triggers form major 3rd, minor 3rd, and perfect fifth intervals at line segment boundaries with adjacent note triggers, and form major and minor triads at vertices or other convergence points where three note triggers meet. The segments and vertices provide for single-finger triggering of intervals and triads. After-pressure and movement in the array plane (even crossing trigger boundaries) provide for three dimensions of per-key continuous control.

Abstract: Optical communication devices and optical communication methods are described. The devices and methods may be implemented in parallel optical communication applications according to some exemplary described aspects to provide enhanced bandwidth. According to one aspect, an exemplary optical communication device includes a plurality of light sources configured in an array and individually adapted to communicate information with respect to an optical communication medium. Individual ones of the light sources are configured to emit light having at least three different and distinct levels to communicate the information with respect to the optical communication medium. The device of this aspect further includes a controller configured to provide a plurality of control signals to control respective ones of the light sources to individually communicate respective information using the at least three different and distinct levels to implement multi-level coding. Other aspects are described.

Abstract: A musical instrument controller provides an array keyboard in which most note triggers form major 3rd, minor 3rd, and perfect fifth intervals at line segment boundaries with adjacent note triggers, and form major and minor triads at vertices or other convergence points where three note triggers meet. The segments and vertices provide for single-finger triggering of intervals and triads. After-pressure and movement in the array plane (even crossing trigger boundaries) provide for three dimensions of per-key continuous control.