accordion

a portable box-shaped free-reed instrument

the reeds are made to vibrate by air from the bellows controlled by the player

An accordion is a musical instrument of the handheld bellows-driven free reed aerophone family, sometimes referred to as squeezeboxes.The accordion is played by compression and expansion of a bellows, which generates air flow across reed (music)reeds; a Musical keyboardkeyboard controls which reeds receive air flow and therefore the tones produced.For a full description of the sound-producing mechanism, see Free reed aerophone.''

Physical description - Modern accordions consists of a body in two parts, each generally rectangular in shape, separated by a bellows. On each part of the body is a Musical keyboardkeyboard containing buttons, levers or piano-style keys. When pressed, the buttons travel in a direction perpendicular to the motion of the bellows (towards the performer). Most, but not all modern accordions also have buttons capable of producing entire chord (music)chords, whereas concertinas' buttons produce only single notes.The related concertina differs in that its buttons never produce chords and travel parallel to the travel of the bellows (towards the opposite end of the instrument); there are also differences in the internal materials, construction, mechanics, and tone color, but the basic principles of sound production are identical.

History - The accordion is one of several European inventions of the early 19th century that used free reeds driven by a bellows; notable among them were:

The Aeoline, by German Bernhard Eschenbach, 1810.

The hand-aeoline, by Christian Buschmann, 1822.

The flutina, by Pichenot Jeune, ca. 1831

The concertina, patented in two forms (perhaps independently):

*Carl Friedrich Uhlig, 1834.

*Sir Charles Wheatstone, examples built after 1829, but not patented until 1844An instrument called accordion was first patented in 1829 by Cyrill Demian in Vienna. (Interestingly, the original patent shows the name "eoline" crossed out and replaced with "accordion" in different handwriting). Demian's instrument bore little resemblance to modern instruments: It only had a left hand keyboard; the right hand simply operated the bellows. One key feature for which Damian sought the patent were the sounding of an entire chord by depressing one key. His instrument also could sound two different chords with the same key: one for each bellows direction (press, draw); this is called a ''bisonoric'' action.Jeune's flutina resembles Wheatstone's concertina in internal construction and tone color, but it appears to complement Demian's accordion functionally. The flutina is a one-sided bisonoric melody-only instrument whose keys are operated with the right hand while the bellows is operated with the left. When the two instruments are combined, the result is quite similar to diatonic button accordions still manufactured today. Further innovations followed and continue to the present: Various keyboard systems have been developed; voicings (the combination of multiple tones at different octaves) have been developed, with mechanisms to switch between different voices during performance; different methods of internal construction to improve tone, stability and durability, and so on.

Piano accordions - The piano accordion is the instrument most often indicated by the term "accordion", but it is one of the most recent inventions among accordion types, appearing late in the 19th century and not accepted worldwide until the early 20th century. It has a right-hand keyboard (music)keyboard similar to a piano; this facilitates learning for musicians already familiar or proficient on the piano.The left hand keyboard is usually configured in the #Stradella bass systemStradella system, a combination of chords and single notes, arranged in a uniform series by harmonic relationship. Occasionally a ''free bass'' left hand is used, which has a series of single buttons in an arrangement similar to the chromatic button accordion. The free bass system facilitates the playing of bass melodies. ''Converter'' bass systems allow an instrument to be readily converted from a Stradella system to a free-bass system with a switch.The instrument was popularized in the United States by Count Guido Deiro who was the first piano accordionist to perform in Vaudeville. He is credited with making the first recordings of the instrument in 1908, making the first radio broadcast of the accordion in 1921 and the first sound filmmotion picture featuring the accordion, for Vitaphone, in 1928.

Button accordions - On button accordions the melody-side Musical keyboardkeyboard consists of a series of buttons (rather than piano-style keys.) There exists a wide variation in keyboard systems, tuning, action and construction of these instruments.Diatonic button accordions have a melody-side keyboard that is limited to the notes of diatonic scale (music)scales in a small number of key (music)keys (sometimes only one). The bass (music)bass side usually contains the principal chord (music)chords of the instrument's key and the root notes of those chords. Almost all diatonic button accordions (e.g.: melodeon) are bisonoric, meaning each button produces two notes: one when the bellows is compressed, another while it is expanded; a few instruments (e.g.: garmon') are unisonoric, with each button producing the same note regardless of bellows direction; still others have a combination of the two types of action: ''See #HybridsHybrids below.''A chromatic button accordion is a type of button accordion where the melody-side keyboard consists of uniform rows of buttons arranged so that the pitch increases chromatic scalechromatically along diagonals. The bass-side keyboard is usually the Stradella system, one of the various free-bass systems, or a converter system. Included among chromatic button accordions is the Russian Bayan (accordion)bayan. Sometimes an instrument of this class is simply called a chromatic accordion, although other types, including the piano accordion, are fully chromatic as well. Chromatic button accordions are preferred by many European classical musicclassical music performers, since the treble keyboard is more dense than that of a piano accordion, allowing a much greater range.Various cultures have made their own versions of the accordion, adapted to suit their own music. Russia alone has several, including the Bayan, Garmon, Livenka, and Saratovskaya Garmonika.Various hybrids have been created between instruments of different keyboards and actions. Many remain curiosities, only a few have remained in use. Some notable examples are:

The Schrammel accordion, used in ViennaViennese chamber music and Klezmer, which has the treble keyboard of a chromatic button accordion and a bisonoric bass keyboard, similar to an expanded diatonic button accordion.

The schwyzerörgeli or SwitzerlandSwiss organ, which has a (usually) 3-row diatonic treble and 18 unisonoric bass buttons in a bass/chord arrangement (actually a subset of the Stradella system), that travel parallel to the bellows motion.

The trikitixa of the Basque people has a 2-row diatonic, bisonoric treble and a 12-button diatonic unisonoric bass.

In Scotland, the favoured diatonic accordion is, paradoxically, the instrument known as the British Chromatic Accordion. While the right hand is bisonoric, the left hand follows the Stradella system. The elite form of this instrument is generally considered to be the German manufactured "Shand Morino", produced by Hohner with the input of the late Sir Jimmy Shand. RefHoward98

Stradella bass system - The Stradella Bass System uses rows of buttons arranged in a circle of fifths; this places the principal major chords of a key in three adjacent rows. Each row contains, in order: A major third (the "counter-bass" note), the root note, the major chord, the minor chord, the seventh chord, and the diminished seventh chord.Depending on the price, size or origin of the instrument, some rows may be missing completely or in different positions. In most Russian layouts the diminished seventh chord row is moved by one button, so that the C diminished seventh chord is where the F diminished seventh chord would be in a standard Stradella layout; this is done in order to achieve a better reachability with the forefinger.Common configurations are:

"12 Bass" accordion: Fundamental Bass goes from B♭ to A (the third to eighth column in the picture above), and only has Fundamental Bass and major chords.

"24 Bass" goes from A♭ to A, and has Fundamental Bass, major and minor chords

"32 Bass" goes from E♭ to E, and has FB, major, minor and seventh chords

"48 Bass" goes from E♭ to E, and has all six rows

"72 Bass" goes from D♭ to F♯, and has all six rows

"80 Bass" goes from C♭ to G♯, and has everything except diminished

"96 Bass" is as 80 Bass, but with all six rows

"120 Bass" goes from A♭♭ (i.e. low G) to A♯ — that's 20 columns — with all six rows.

Free bass systems - There are various free bass systems in use; most consist of a rotated version or mirror image of one of the melody layouts used in chromatic button accordions. One notable exception is the Titano line of convertor bass, which repeats the first two bass rows of the Stradella system one and two octaves higher moving outward from the bellows.Skillfull use of the free bass system enabled the performance of classical piano music, rather than music arranged specifically for the accordion's standard chorded capability. Beginning in the 1960s, competitive performance on the accordion of classical piano compositions, by the great masters of music, occurred. Although never mainstreamed in the larger musical scene, this convergence with traditional classical music propelled young accordionists to an ultimate involvement with classical music heretofore not experienced.

Audio samples -

accordian_chords-01.oggtitle=Accordion chordsdescription=Chords being played on an accordion — 145 KB format=Ogg

Related instruments -

Squeezeboxes -

Concertina

Bandoneon

Flutina

Other free-reeds -

Harmonica

Harmonium

Melodica

Sheng

Khene

See also - List of accordionists

External links - commonsAccordion

? ksanti.net - English translation of Cyrill Demian's accordion patent

accordionradio.co.uk - Accordion radio station playing 24 hours per day.

accordionfestival.co.uk - List of forthcoming accordion festivals

squeezebox.wikicities.com - Squeezebox, an open repository of squeezebox knowledge on Wikicities.

accordionpage.com - Hans Palm's Accordion Page has information about and pictures of diffent types of accordion.

References - #NoteHoward98 p.98, Howard, Rob (2003) ''An A to Z of the Accordion and related instruments'' Stockport:Robaccord Publications ISBN 0-9546711-0-4Squeezebox Category:Keyboard instrumentsCategory:Free reed aerophonesCategory:Sets of free !reedsde:Akkordeones:Acordeóne o:Akordionofr:Accordéongl:Aco rdeónia:Accordionit:Fisarmoni cahe:אקורדיוןnl:Accord eonja:アコーディオンno: Trekkspillnn:Trekkspelpl:Akord eonpt:Sanfonafi:Harmonikkasv:D ragspeluk:Акордеонzh:� ��风琴

Giorgio Colombo Taccani
The biography, the catalogue, a profile, MP3 audio, excerpts from the scores.
http://www.colombotaccani.it/

accordimento Stuttgart-Moehringen
Accordion orchestra and ensemble in Stuttgart Moehringen, Germany.
http://www.accordimento.de/

Ulrich Kodjo Wendt
Akkordeonist und Komponist aus Hamburg.
http://www.ulrichwendt.de/

Accordion Help Centre. Accordeon Hulp. Akkordeon Hilfe
In 3 languages we give Accordeon or Accordion repair advice oder Akkordeon Beratung.. We deliver all Parts-Tools-Manuals and Accordions New and Second hand.
http://www.accordeon.nl/

SCHERF - The official Site
Over 150,000 music instruments and music gear accessories at Super Discount Prices.
http://www.scherf.com/

Website of the Akkordeon-Spielring Rielasingen-Worblingen e.V.
This is the website of an accordion association based in southern Germany.
http://www.akkordeon-spielring.de/

Accordion Links
Searchable database of links for instruments, muscial styles, history and clubs.
http://www.accordionlinks.com/

CMU School of Computer Science
Education in computer music, data mining, machine learning, vision, and speech with a list of research topics.
http://www.cs.cmu.edu/

Accordions Worldwide
Offers listings of accordionists , organisations , weekly news , general information , internet site design and hosting.
http://www.accordions.com/