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Layout of a musical keyboard (all octaves shown) The musical keyboard of a Steinway concert grand piano. A musical keyboard is the set of adjacent depressible levers or keys on a musical instrument.
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 ...
This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th key, the fifth A (called A 4), tuned to 440 Hz (referred to as A440). [1] [2] Every octave is made of twelve steps called semitones.
The generalized keyboard is one kind of symmetrical arrangement that represents pitches according to their relationship to each other – rather than their positions in specific scales such as in the familiar piano and organ keyboard – as well as in sequence of pitch, unlike arrangements such as duet systems for concertinas and the array ...
In music, an octave (Latin: octavus: eighth) or perfect octave (sometimes called the diapason) [2] is a series of eight notes occupying the interval between (and including) two notes, one having twice the frequency of vibration of the other. The octave relationship is a natural phenomenon that has been referred to as the "basic miracle of music ...
Isomorphic keyboard layouts (7 P) M. Melodeon (1 C, ... Piano accordion; S. Schrammel accordion; Short octave; Split sharp
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.
An 88-key piano keyboard, with the octaves numbered and middle C (cyan) and A440 (yellow) highlighted. The table below gives notation for pitches based on standard piano key frequencies: standard concert pitch and twelve-tone equal temperament.