Wicki-Hayden note layout

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 layout as the 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.

Wicki-Hayden Note Layout Media

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  Traditional Piano Keyboard (7–5) Color Scheme

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  Strong Piano (7–5) and Subtle Whole Tone Scale (6–6) Color Scheme

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  Minor Thirds Color Scheme (4–4–4)

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  Whole Tone Scale (6–6) Color Scheme

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  Strong Whole Tone Scale (6–6) and Subtle Piano (7–5) Color Scheme

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  Major Thirds Color Scheme (3–3–3–3)