Abstract: The Chord Board is a revolutionary musical instrument that simplifies and expands on the traditional piano-style keyboard interface through the use of computer technology. Musicians skilled or unskilled alike will be able to take advantage of this new musical interface which makes the playing of an unlimited variety of chords and their respective note patterns not only possible, but easy. Yet the design of the Chord Board allows for an extremely complex performance from a musician who has the ability and skill to make such a performance. The Chord Board is designed to maximize the potential for the introduction of the human element into the musical performance. The player interface of the Chord Board departs significantly from the traditional piano. There are eight banks of eight keys each, three for the left hand, and five for the right hand. These keys are similar in size and shape to the traditional piano-style key, yet there are no black keys in between the white keys.