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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 ...
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).
96-button Stradella bass layout on an accordion. C is in the middle of the root note row. The Stradella Bass System (sometimes called [1] standard bass) is a buttonboard layout equipped on the bass side of many accordions, which uses columns of buttons arranged in a circle of fifths; this places the principal major chords of a key (I, IV and V) in three adjacent columns.
The B/C/C ♯ system (also known as the British Chromatic System) used in Scotland provides a notable example of the use of a double-action bass side with a single-action melody side: these instruments frequently feature a full Stradella bass system as used on piano accordions and chromatic button accordions.
A button accordion is a type of accordion on which the melody-side keyboard consists of a series of buttons. This differs from the piano accordion , which has piano-style keys. Erich von Hornbostel and Curt Sachs categorize it as a free reed aerophone in their classification of instruments , published in 1914. [ 1 ]
How many reeds an accordion has is specified by the number of treble ranks and bass ranks. For example, a 4/5 accordion has four reeds on the treble side and five on the bass side. A 3/4 accordion has three reeds on the treble sides and four on the bass side. Reed ranks are classified by either organ 'foot-length' stops or instrument names ...
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