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Accordion patent granted to Cyrill Demian in Vienna23.5.1829

Wikipedia (15 Apr 2013, 09:19)
On May 6, 1829, Cyrill and his two sons presented a new instrument to the authorities for patent - the accordion. The patent was officially granted on May 23, 1829.

The Accordion

The accordion (from German Akkordion, from Akkord - "musical chord, concord of sounds") is a box-shaped musical instrument of the bellows-driven free-reed aerophone family, sometimes colloquially referred to as a squeezebox. A person who plays the accordion is called an accordionist.

The instrument is played by compressing or expanding the bellows while pressing buttons or keys, causing valves, called pallets, to open, which allow air to flow across strips of brass or steel, called reeds, that vibrate to produce sound inside the body.

This instrument is sometimes considered a one-man-band, as it needs no accompanying instrument. The performer normally plays the melody on buttons or keys on the right-hand manual, and the accompaniment, consisting of bass and pre-set chord buttons, on the left-hand manual.

The accordion -which is mainly manufactured in Italy -is often used in folk music in Europe, North America and South America, and in some countries, such as Brazil and Mexico, it is also commonly used in mainstream pop music. In Europe and North-America, it is often associated with busking. Some popular music acts also make use of the instrument. Additionally, the accordion is sometimes used in both solo and orchestra performances of classical music.

The oldest name for this group of instruments is actually harmonika, from the Greek harmonikos, meaning harmonic, musical. Today, native versions of the name accordion are more common. These names are a reference to the type of accordion patented by Cyrill Demian, which concerned "automatically coupled chords on the bass side".

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