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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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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.
Free bass accordion is taught at the undergraduate and post-graduate levels at the National Autonomous University of Mexico in Mexico City. In the United States, free bass instruments are much less well known despite attempts to popularize them by Palmer and Hughes and the Giulietti Accordion Company [ 17 ] [ 18 ] in the 1960s and 1970s.
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 ...
The accordion's basic form is believed to have been invented in Berlin, in 1822, by Christian Friedrich Ludwig Buschmann, [notes 2] [6] although one instrument was discovered in 2006 that appears to have been built earlier. [notes 3] [7] [8] The earliest history of the accordion in Russia is poorly documented.
The diatonic 2-row button accordion with eight bass buttons is still very common in northeast Brazil. [6] It is known as the fole to distinguish it from the piano accordion. [6] It first appeared there in the late nineteenth century. [6] Previously, one-row diatonic button accordions with two bass buttons were used. [6]
A concertina is a free-reed musical instrument, like the various accordions and the harmonica. It consists of expanding and contracting bellows, with buttons (or keys) usually on both ends, unlike accordion buttons, which are on the front. The concertina was developed independently in both England and Germany. [1]