What is Wicki-Hayden note layout?
[[File:Wicki-Hayden Musical Note Layout.png|400px|thumb|The Wicki-Hayden note layout: The notes of the major scale are together.]] In [[music]], the '''Wicki-Hayden note layout''' has the same advantage over the traditional [[Keyboard instrument|keyboard]] layout as the [[6-plus-6-instruments|6-plus-6-system]]: There is the same fingering in all 12 scales. It is used for the Hayden duet [[concertina]]. Kaspar Wicki patented it in 1896 in Switzerland. Brian Hayden, a concertina player, refined this layout and patented it again in 1986 in Great Britain. [[Category:Keyboard instruments]] {{music-stub}}