Jankó keyboard - WikipediaThis article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Jankó keyboard" – news · newspapers · books · scholar · JSTOR (July 2010) (Learn how and when to remove this message) A Jankó keyboard The Jankó keyboard is a musical keyboard layout for a piano designed
Arturia Keystep Janko Keys by TomsJensen
