Chisholm, Leon Max Planck Research Group Epistemes of Modern Acoustics, Max Planck Institute for the History of Science, Max Planck Society;
https://westfield.org/publications/keyboard-perspectives-xii-201920.html (Any fulltext)
Chisholm, L. (Ed.). (2021). The Keyboard as a Musical Interface [Special Issue]. Keyboard Perspectives, 12(2019-20).