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This type of keyboard layout, known as the enharmonic keyboard, extended the flexibility of the harpsichord, enabling composers to write keyboard music calling for harmonies containing the so-called wolf fifth (G-sharp to E-flat), but without producing aural discomfort in the listeners (see Split sharp). The "broken octave", a variation of the ...
A similar keyboard was developed by Larry Hanson [4] in 1942 for use with a 53 tone scale but turns the fifth sideways and the major third to the right and up. Keyboard note layout of the Harmonetta. The modern layout was proposed in 1983 by inventor Peter Davies, who obtained an international patent for its use in instruments in 1990.
Tuning Exploration, play the Wicki layout on your computer keyboard while changing the tuning dynamically. The Hayden duet system concertina – Resource List . Relayer : an app (Windows and OS X) that enables musicians who play the QWERTY computer keyboard or the AXiS-49 MIDI controller, to play in a wide variety of isomorphic note layouts ...
The Selmer Balanced Action saxophone was manufactured by Selmer from 1935 through 1947. It introduced a revolutionary new layout for the key table operating the G ♯ and low C ♯, B, and B ♭ keys. The layout solved long-standing deficiencies in those mechanisms and all modern saxophones have left hand key tables derived from this ...
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.
Euler's Tonnetz. The Tonnetz originally appeared in Leonhard Euler's 1739 Tentamen novae theoriae musicae ex certissismis harmoniae principiis dilucide expositae.Euler's Tonnetz, pictured at left, shows the triadic relationships of the perfect fifth and the major third: at the top of the image is the note F, and to the left underneath is C (a perfect fifth above F), and to the right is A (a ...
The possibility of the duplication of pitches occurs because the generalized keyboard is, in principle, a mapping of pitches onto a closed space in which intervals and chords have fixed shapes under transposition across the keyboard; thus a generalized keyboard is a useful tool for the analysis of harmonic structures.
Yamaha PSR-290 electronic keyboard A MIDI song played on a Casio electronic keyboard. An electronic keyboard, portable keyboard, or digital keyboard is an electronic musical instrument based on keyboard instruments. [1] Electronic keyboards include synthesizers, digital pianos, stage pianos, electronic organs and digital audio workstations.