@article {2774, title = {History and Principles of Microtonal Keyboard Design}, year = {1988}, month = {04/1988}, institution = {Stanford University, CCRMA}, address = {Stanford, CA}, keywords = {design, history, keyboard, microtonal, microtonal keyboard}, url = {https://ccrma.stanford.edu/files/papers/stanm45.pdf}, author = {Keisler, D.} }