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A Jankó keyboard. The Jankó keyboard is a musical keyboard layout for a piano designed by Paul von Jankó, a Hungarian pianist and engineer, in 1882.It was designed to overcome two limitations on the traditional piano keyboard: the large-scale geometry of the keys (stretching beyond a ninth, or even an octave, can be difficult or impossible for pianists with small hands), and the fact that ...
An isomorphic keyboard is a musical input device consisting of a two-dimensional grid of note-controlling elements (such as buttons or keys) on which any given sequence and/or combination of musical intervals has the "same shape" on the keyboard wherever it occurs – within a key, across keys, across octaves, and across tunings.
Chromatic button accordion; Classification: Free-reed aerophone: Playing range; Right-hand manual: The Russian bayan and chromatic button accordions have a much greater right-hand range in scientific pitch notation than an accordion with a piano keyboard: five octaves plus a minor third (written range = E2-G7, actual range = E1-D9, some have a 32 ft Register on the Treble to go even lower down ...
Patent number GB2131592 (B), An Arrangement of Notes for Musical Instruments. Qwertonic, started using the Wicki layout on qwerty keyboards back in the 80's. Tuning Exploration, play the Wicki layout on your computer keyboard while changing the tuning dynamically. The Hayden duet system concertina – Resource List.
At the top is the earliest example of the "seven plus five" layout. The bottom two illustrate the earlier "eight plus four" arrangement. The chromatic range (also called compass) of keyboard instruments has tended to increase. Harpsichords often extended over five octaves (>60 keys) in the 18th century, while most pianos manufactured since ...
The button layouts are generally the same as the original 20-button German concertinas designed by Uhlig in 1834, and in a bisonoric system. Within a few years of its invention, the German concertina was a popular import in England, Ireland, and North America, due to its ease of use and relatively low price. English manufacturers responded to ...
Bayan; Classification: Free-reed aerophone: Hornbostel–Sachs classification: 412.132: Playing range; Right-hand manual: The Russian bayan and chromatic button accordions have a much greater right-hand range in scientific pitch notation than accordions with a piano keyboard: five octaves, plus a minor third (written range = E2-G7, actual range = E1-C#8).
ISO/IEC 9995 Information technology — Keyboard layouts for text and office systems is an ISO/IEC standard series defining layout principles for computer keyboards. It does not define specific layouts but provides the base for national and industry standards which define such layouts.