Some 1960s electronic organs used reverse colors or gray sharps or naturals to indicate the lower part (or parts) of a single keyboard divided into two parts, each controlling a different registration or sound. A few electric and electronic instruments from the 1960s and subsequent decades have also done this Vox's electronic organs of the 1960s, Farfisa's FAST portable organs, Hohner's Clavinet L, one version of Korg's Poly-800 synthesizer and Roland's digital harpsichords. Many keyboard instruments dating from before the nineteenth century, such as harpsichords and pipe organs, have a keyboard with the colours of the keys reversed: the white notes are made of ebony and the black notes are covered with softer white bone. The arrangement of longer keys for C major with intervening, shorter keys for the intermediate semitones date to the 15th century. The entire pattern repeats at the interval of an octave. Because these keys receive less wear, they are often made of black colored wood and called the black notes or black keys. The keys for the remaining five notes-which are not part of the C major scale-(i.e., C ♯/D ♭, D ♯/E ♭, F ♯/G ♭, G ♯/A ♭, A ♯/B ♭) (see Sharp and Flat) are raised and shorter. Because these keys were traditionally covered in ivory they are often called the white notes or white keys. The longer keys (for the seven "natural" notes of the C major scale: C, D, E, F, G, A, B) jut forward. The twelve notes of the Western musical scale are laid out with the lowest note on the left. Since the most commonly encountered keyboard instrument is the piano, the keyboard layout is often referred to as the piano keyboard or simply piano keys.ĭescription Harpsichord with black keys for the C major scale Pressing a key on the keyboard makes the instrument produce sounds-either by mechanically striking a string or tine ( acoustic and electric piano, clavichord), plucking a string ( harpsichord), causing air to flow through a pipe organ, striking a bell ( carillon), or activating an electronic circuit ( synthesizer, digital piano, electronic keyboard). Keyboards typically contain keys for playing the twelve notes of the Western musical scale, with a combination of larger, longer keys and smaller, shorter keys that repeats at the interval of an octave. Layout of a musical keyboard (all octaves shown) 88-key piano illustration The musical keyboard of a Steinway concert grand pianoĪ musical keyboard is the set of adjacent depressible levers or keys on a musical instrument. For instruments referred to as "keyboards", see Keyboard instrument. This article is about keyboards on musical instruments.
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