Accordion music genres
The accordion is in a wide variety of musical genres, mainly in traditional and popular music. In some regions, such as Europe and North-America it is has become mainly restricted to traditional, folk and ethnic music. In other regions such as Brazil, it is a fixture popular music styles as Sertanejo and Forró. In art music it is used in jazz music, an important exponent haveing been the north-american accordionist Frank Marocco and in transcriptions from the operatic and light-classical music repertoire.
Use in traditional music
After the invention of the accordion in 1829, its popularity spread throughout the world, in no small measure due to the polka craze. "Once the polka became a craze in Paris and London during the spring of 1844, it diffused rapidly to the rest of the world. . . . In March 1844, polka-mania took Paris: common people, servants, workers and, one assumes, anyone else who wasn't too stuffy were dancing the polka in the streets of the capital and soon in Bordeaux and other French cities as well. A week or so later it took London by storm. And from these two great centers of fashion, empire, and influence, the polka diffused rapidly upward into the rest of French and English society and outward to the rest of the world." 
Except for a brief moment in time during the 1830s and 1840s when the accordion was heard by French aristocracy during Salon music concerts, the instrument has always been associated with the common people. The accordion was spread across the globe by the waves of Europeans who emigrated to various parts of the world in the late 19th century and early 20th century.
The mid-19th-century accordion became a favorite of folk musicians for several reasons: "The new instrument's popularity [among the common masses] was a result of its unique qualities. Firstly, it was much louder than all the older folk instruments put together. It could easily be heard in even the wildest pub above the stomping of dancing feet. It was also the prototype of a 'one man band' with bass and chords on the left-hand side and buttons for the melody on the right, and you could still sing along and beat the rhythm with your feet. The instrument needed no tuning and was always ready to play, but the most ingenious thing about the early one-row squeezebox was that you couldn't play it really badly. Even if you lost the melody it still sounded fine." 
Since its invention, the accordion has become popularly integrated into a lot of varying traditional music styles all over the world, ranging from the European polka and the Colombian Vallenato to Korean trot music. See the list of traditional music styles that incorporate the accordion. Although rarely seen many early bigband (swing bands like Glenn Miller's) scores have the Piano part marked "Piano/Piano Accordion"
Sometimes, certain traditional music styles may even be tied to a certain type of accordion, like the Schrammel accordion for Schrammelmusik, the Trikitixa for Basque music, or the diatonic button accordion in Mexican conjunto and norteño music. It would be hard to name one country in which the accordion did not play a significant role in its music tradition. It has even been idealized in literature.
Use in popular music
The accordion was heard frequently in popular music beginning around 1910 until about 1960. With rise of the popularity of the guitar (in particular the electric guitar) and rock music, the popularity of the accordion in pop music in Europe and North-America declined strongly. In some countries however, such as Brazil, the accordion continues to be a fixture in pop music and its popularity is undiminished.
This half century is often called the "Golden Age of the Accordion." Three players, more than any others, inaugurated this era of popularity for the instrument, all Italian immigrants to the United States: Pietro Frosini, and the two brothers Count Guido Deiro and Pietro Deiro. All three players were celebrities on the Vaudeville circuits and performed throughout North America, Europe and Australia during the age of Vaudeville. They recorded hundreds of 78 RPM records for the Victor Talking Machine Company, Columbia Records, Decca Records, Edison Records and Cylinders, and other labels. Guido Deiro was the most successful and famous accordionist during the 1910s and 1920s, and lived a life filled with celebrity, luxury, fast cars, and fast women. Many popular bands, such as the Paul Whiteman Orchestra, employed staff accordionists.
After most Vaudeville theaters closed during the Great Depression, accordionists still found work during the 1930s-1950s teaching and performing for radio. Charles Magnante is considered one of the greatest American popular accordionists. At the peak of his career, he played 30 live radio broadcasts and eight studio sessions each week. Another great popular American accordionist was Dick Contino, who toured with the Horace Heidt Orchestra and was billed as the "world's greatest accordion player." He appeared on The Ed Sullivan Show a record 48 times. In addition, John Serry, Sr. achieved national recognition on tour with Shep Fields and His Rippling Rhythm jazz orchestra during the 1930s, concertized on the CBS radio and television networks in the 1940s and 1950s and appeared in the Broadway Theatre during the 1950s and 1960s. During the 1950s through the 1980s the accordion received great exposure on television with performances by Myron Floren—the accordionist with Lawrence Welk—on the Lawrence Welk Show. However, with the advent of rock 'n roll and the generation gap in the late 1950s and early 1960s, the accordion declined in popularity, as the younger generation considered it "square"— epitomizing the light-hearted music of their parents and grandparents.
In Europe and North-America, in contemporary mainstream pop music (see youth culture), the use of the accordion is usually considered exotic or old-fashioned. Nevertheless, some popular acts do use the instrument in their distinctive sounds, and a 2014 Los Angeles Times article reports that the instrument is growing in popularity locally. (See the list of popular music acts that incorporate the accordion.)
In some countries, such as Brazil, the accordion is a fixture in maintstream popular music (evidenced by mainstream groups such as Falamansa, Michel Teló, Avioes do Forró). The instrument is commonly learned by teenagers and enjoys a popularity comparable to the guitar. In some regions (such as the North-East, where it is called sanfona), the accordion surpasses the guitar in popularity among the youth. In Brazil, however, the accordion uses normally a very dry tuning, which dissociates it from the wetter sound found in European folk music.
The instrument was also used in the Disney song "Whale of a Tale" from 20,000 Leagues Under the Sea, as well as Donald Duck's song, "Quack Quack Quack". It was used in a Christmas setting for the song "Nuttin' for Christmas".
The composer Tomohito Nishiura frequently uses the accordion in the Professor Layton series of games, for example in "Laboratory" or "Don Paolo's Theme". However, when 'Live Versions' of the soundtracks are released, the accordion is occasionally replaced (such as in "London 3" from Professor Layton and the Unwound Future). Every 'theme' for a game uses the accordion in some capacity.
The accordion has been a primary instrument in Mexican style music. Since the late 19th century, Tejano music has emerged as one of the leading genres for the instrument in America. Pioneers such as Narciso Martínez gave the instrument ataple in the cultural music of Mexican American people. Central to the evolution of early Tejano music was the blend of traditional forms such as the Corrido and Mariachi, and Continental European styles, such as Polka, introduced by German and Czech settlers in the late 19th century. In particular, the accordion was adopted by Tejano folk musicians at the turn of the 20th century, and it became a popular instrument for amateur musicians in Texas and Northern Mexico. Small bands known as orquestas, featuring amateur musicians, became a staple at community dances.
Various folk metal and viking metal bands, such as Finsterforst, Finntroll, and Turisas  that have formed in the 1990s and first decade of the 21st century feature accordions.
Use in classical music
Although the accordion is best known primarily as a folk instrument, it has been used with increasing frequency by classical composers. The earliest surviving concert piece written for the accordion is Thême varié très brillant pour accordéon methode Reisner, written in 1836 by Miss Louise Reisner of Paris, an accordionist and amateur composer.
The Russian composer Piotr Ilyitch Tchaikovsky included four optional single-action diatonic accordions in his Orchestral Suite No. 2 in C Major, op. 53 (1883), simply to add a little color to the third movement: Scherzo burlesque.
The Italian composer Umberto Giordano included the single-action diatonic accordion in his opera Fedora (1898). The accordionist appears on-stage—along with a folk-trio consisting of a piccolo player and triangle player—three times in the third act (which is set in Switzerland), to accompany a short and simple song which is sung by a little Savoyard (Alpine shepherd).
In 1915, the American composer Charles Ives included a chorus of diatonic accordions (or concertinas[notes 1] —along with two pianos, celesta, harp, organ, zither and an optional theremin—in his Orchestral Set No. 2. The accordion part—written for the right-hand only—consists of eighteen measures at the very end of the eighteen-minute-long three-movement work. All the above works were written for the diatonic button accordion.
The first composer to write specifically for the chromatic accordion (able to play all 12 notes of the chromatic scale) was Paul Hindemith. In 1921 he included the harmonium in Kammermusik No. 1, a chamber work in four movements for twelve players, but later rewrote the harmonium part for accordion. Other German composers also wrote for the accordion.
In 1922, Austrian composer Alban Berg included a short on-stage accordion part in his landmark opera Wozzeck, Op. 7. The instrument—marked Ziehharmonika bzw. Akkordeon in the score appears only during the tavern garden (wirthausgarten) scene, along with an on-stage (Bühnenmusik) ensemble consisting of two fiddles (violins tuned up a tone), one clarinet in C, one guitar and one bombardon in F (or bass tuba), to lend a touch of authenticity to the deutsche Biergarten setting.
Notable composers who wrote for the accordion during the first half of the 20th century were:
- Virgil Thomson: Four Saints in Three Acts (1928)
- Serge Prokofiev: Cantata for the 20th Anniversary of the October Revolution, op. 74 (1936)
- Paul Dessau: Mother Courage (1936) and Die Verurteilung des Lukullus (1949)
- Dmitri Shostakovich: Jazz Suite No. 2 (1938)
- Jean Françaix: Apocalypse According to St. John (1939)
- Darius Milhaud: Prelude and Postlude for "Lidoire" (1946)
- Henry Brant: All Soul's Carnival (1949)
- George Antheil—of Ballet mécanique fame: Accordion Dance for accordion and orchestra (1951)
- John Serry, Sr.: American Rhapsody (1955), to name a few.
The free-bass accordion in classical music
Despite efforts by accordion performers and organizations to present the accordion as a serious instrument to the classical music world, the much-coveted breakthrough into the mainstream of serious musical circles did not take place until after leading accordionists more or less abandoned the stradella-bass accordion (an instrument limited to only bass and pre-set chord buttons on the left-hand manual) and embraced the free-bass accordion (an instrument which could play single pitches on the left-hand manual with a range of three octaves or more, similar to the right-hand manual). Composers found the free-bass accordion much more attractive and easier to write for as it liberated the instrument from a limited range of bass notes (only a minor seventh) and the pre-set chord buttons.[notes 2]
Despite being invented as early as 1912, the instrument did not really become popular until the mid-20th century, when it was "discovered" by classical accordionists. The Danish accordionist Mogens Ellegaard, regarded by many as the father of the avant-garde accordion movement, described his introduction to the new accordion:
"When I started, there was absolutely no accordion culture. Unless, you define accordion culture as 'oom-pah-pah,' or the Cuckoo Waltz—that sort of thing. The free-bass accordion didn't exist—it was entirely unknown when I was a child. At that time the accordion world was living in splendid isolation. No contact at all with the outside musical world. Concerts for us consisted of Frosini, Deiro repertoire or folkloristic music. The possibilities of getting a formal, quality education [on accordion] were nil. The accordion was not accepted at any of the higher music institutions. . . . The possibilities for a soloist, for the best players, would be variety 'night club' work, Saturday night shows. . . . This is what I was doing when I was very young."
"But in 1953 the first free-bass accordions were introduced in Denmark and, by coincidence, I was one of the first students to get such an instrument. . . . In 1957, the pianist Vilfred Kjaer, who was also well-known in our country as a composer of light music, wrote a concerto for me and through his good connections, he was able to organize the world premiere of Jubilesse infameuse. It was a work of light character, but anyway a beginning. At that concert, also by coincidence, [the composer] Ole Schmidt was sitting in the audience. He didn't like Kjaer's composition, but liked the instrument, and told me this bluntly afterwards. So I challenged him to write something better. In 1958 he wrote Symphonic Fantasy and Allegro, op. 20 for accordion and orchestra, which was the first really serious work for accordion written by a good composer." 
Symphonic Fantasy and Allegro was premiered by the Danish Radio Symphony with the composer conducting. Ole Schmidt made the following comment about the work, "I hated accordion until I met Mogens Ellegaard. He made me decide to write an accordion concerto for him." 
Other Danish composers soon followed Schmidt:[notes 3]
- Niels Viggo Bentzon wrote Concerto for Accordion (1962–63), In the Zoo (1964) and Sinfonia concertante (1965) for six accordions, string orchestra and percussion.
- Per Nørgård wrote Anatomic Safari (1967) for solo accordion and Recall (1968) for accordion and orchestra, which was dedicated to Lars Dyremose, director of the Danish Accordion Academy.
- Karl Aage Rasmussen wrote Invention (1972)
- Hans Abrahamsen wrote Canzone (1977-8) for solo accordion.
- Steen Pade, Nørgård's student, wrote a concerto for accordion and three solo works: Excursions With Detours (1984), Aprilis (1987) and Cadenza (1987).
- Vagn Holmboe wrote Sonata, Op. 143A.
In Europe, free bass accordion performance has reached a very high level and the instrument is considered worthy of serious study in music conservatories. Modern and avant-garde composers such as Sofia Gubaidulina, Edison Denisov, Luciano Berio, Per Nørgård, Arne Nordheim, Jindrich Feld, Franco Donatoni, Toshio Hosokawa, Mauricio Kagel, Patrick Nunn and Magnus Lindberg have written for the free bass accordion and the instrument is becoming more frequently integrated into new music chamber and improvisation groups.
The Italian composer Salvatore Sciarrino (b. 1947) recently wrote a piece entitled Storie di Altre Storie, for accordionist Teodoro Anzellotti, requiring use of the free bass accordion in its instrumentation, and drawing off the keyboard sonatas of Domenico Scarlatti, the glass harmonica music of Wolfgang Amadeus Mozart, and the ballades of Guillaume de Machaut. It was well received by most European audiences and was released on a compilation disc of Sciarrino's other works on the Winter and Winter label. Young generation composers who have written for accordion include Christina Athinodorou (b. 1981) who wrote "Virgules" for Solo Accordion (2009) featuring the combined use between the stradella bass and the chromatic button system.
In the United States, the free-bass accordion is heard occasionally. 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.
A number of American instrumentalists did succeed in demonstrating the unique orchestral capabilities of the free bass accordion while performing at the nation's premier concert venues. In the process they encouraged contemporary composers to write for the instrument. Included among the leading orchestral artists was John Serry, Sr. A concert accordionist, soloist, composer, and arranger, Serry performed extensively in both symphonic orchestras and jazz ensembles as well as on live radio and television broadcasts. His refined poetic artistry gained respect for the free bass accordion as a serious concert instrument among prominent classical musicians and conductors of the early 20th century. In addition, his Concerto For Free Bass Accordion was completed in 1966 and illustrates the vast orchestral potentialities of the instrument.
Recently Guy Klucevsek has built a reputation on combining folk styles with classical forms and makes extensive use of the free bass. New York's William Schimmel, who composes and performs in many genres, is a leading exponent of the "quint" style free bass system and uses it extensively in tandem with the standard stradella system.
In Canada several performers also contributed extensively to the acceptance of the Free Bass Accordion as a respected member of orchestral ensembles throughout North America. Among the leading performers, educators and composers was Joseph Macerollo who achieved widespread acclaim as an interpreter of both contemporary and classical compositions for the instrument.
- The orchestra score ambiguously lists the part sometimes as "accordions" and sometimes as "concertinas."
- It should be noted that both Hindemith and Berg wrote for the free-bass accordion in 1922.
- For compositions particularly written for Ellegaard, see contents of the "Mogens Ellegaard collection" that are listed at The Royal Library of Denmark (Danish), also listing compositions written for him and their author.
- Henry Doktorski, CD booklet notes for "Guido Deiro: Complete Recorded Works, Vol. 1", Archeophone Records (2007).
- Charles Keil, Angeliki V. Keil, Dick Blau, Polka Happiness (Temple University Press, Philadelphia: 1992), 9, 11.
- Christoph Wagner, "A Brief History of How the Accordion Changed the World", CD booklet notes for Planet Squeezebox, performed by various artists, (Roslyn, New York: Ellipsis Arts, 1995), 6.
- Gerber, Marisa (2014-04-03). "More fans of the accordion are squeezing in lessons". Los Angeles Times. Retrieved 2014-04-09.
- Wallace, Len. "The Accordion - The People's Instrument" (1989) Online PDF
- For a biography of Guido and Pietro Deiro, see Henry Doktorski's The Brothers Deiro and Their Accordions, The Classical Free-Reed, Inc. (2005).
- The Golden Age of the Accordion, Flynn, Davison and Chavez, eds., 3rd edition (Schertz, Texas: Flynn Associates Publishing Co., 1992)
- Henry Doktorski, The Brothers Deiro and Their Accordions (The Classical Free-Reed, Inc., Oakdale, Pennsylvania: 2005)
- Henry Doktorski, "The Accordion and Gershwin's Rhapsody in Blue", Music Theory: Explorations and Applications, Vol. VII (1999) Mary Pappert School of Music, Duquesne University Publication. See also: http://henrydoktorski.com/misc/gershwin.html.
- Helmi Strahl Harrington, editor, The Charles Magnante Story: The Autobiography of America's Great Accordionist, as told to Zello Cassolino, fourth edition (Harrington Arts Center Publication, Superior, Wisconsin: 2002)
- Bob Bove with Lou Angellotti, Accordion Man: The Legendary Dick Contino (Father and Son Publishing, Tallahassee, Florida: 1994)
- The Los Angeles Examiner, October 9, 1938, Pg. 1
- Myron Floren and Randee Floren, Accordion Man, with a forward by Lawrence Welk (The Stephen Greene Press, Brattleboro, Vermont: 1981)
- Henry Doktorski, The Classical Squeezebox: A Short History of the Accordion and Other Free-Reed Instruments in Classical Music, The Classical Free-Reed, Inc. (2005), 125.
- Gerber, Marisa (2014-04-03). "More fans of the accordion are squeezing in lessons". Los Angeles Times. Retrieved 2014-04-09.
- von Hobartian, Mike. "Interview with Wilska of Finntroll". Ruthlessreviews.com. Retrieved 2008-03-15.
- "Heavy Metal Accordion: An Introduction to Turisas". Retrieved 2014-04-09.
- See Accordion Composers in German
- Above paragraphs referenced from Henry Doktorski, "The Classical Squeezebox: A Short History of the Accordion and Other Free-Reed Instruments in Classical Music", The Classical Free-Reed, Inc. (1997).
- Mogens Ellegaard, cited in "Interview", The Classical Accordion Society of Canada Newsletter (March 1990), 3-5.
- Ole Schmidt, cited in the CD booklet for Contemporary Danish Accordion Music, performed by Mogens Ellegaard with the Danish Radio Symphony Orchestra, conducted by Ole Schmidt (Solrod Strand, Denmark: Independent Music, 1987).
- Library of Congress Copyright Office, Concerto in C Major for Basseti Accordion, Composer John Serry, June 4, 1968, Copyright #EP247602
-  Joseph Macerollo
- Joseph Macerollo