Norah Jones

Jazz is a musical style that originated at the beginning of the 20th century in black communities in the Southern United States. It was born out of a... mix of African and European music traditions. Its black African pedigree is evident in its use of blue notes, improvisation, polyrhythms, syncopation and the swung note. From its early development until the present day jazz has also incorporated music from American popular music. As the music has developed and spread around the world it has drawn on many different national, regional and local musical cultures giving rise, since its early 20th century American beginnings, to many distinctive styles: New Orleans jazz dating from the early 1910s, big band swing, Kansas City jazz and Gypsy jazz from the 1930s and 1940s, bebop from the mid-1940s and on down through West Coast jazz, cool jazz, avant-garde jazz, Afro-Cuban jazz, modal jazz, free jazz, Latin jazz in various forms, soul jazz, jazz fusion and jazz rock, smooth jazz, jazz-funk, punk jazz, acid jazz, ethno jazz, jazz rap, cyber jazz, Indo jazz, M-Base, nu jazz, urban jazz and other ways of playing the music. In a 1988 interview, trombonist J.J. Johnson said, "Jazz is restless.
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Country music is a popular American musical style that began in the rural Southern United States in the 1920s. It takes its roots from Western cowboy... and southeastern American folk music. Country music often consists of ballads and dance tunes with generally simple forms and harmonies accompanied by mostly string instruments such as banjoes, electric and acoustic guitars, fiddles such as violins, and harmonicas. The term country music gained popularity in the 1940s in preference to the earlier term hillbilly music. The term country music is used today to describe many styles and subgenres. In 2009 Country music was the most listened to rush hour radio genre during the evening commute, and second most popular in the morning commute. Immigrants to the Maritime Provinces and Southern Appalachian Mountains of North America brought the music and instruments of the Old World along with them for nearly 300 years.
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Folk music includes both traditional music and the genre that evolved from it during the 20th century folk revival. The term originated in the 19th... century but is often applied to music that is older than that. Certain types of folk music are also called world music. Traditional folk music has been defined in several ways: as music transmitted by mouth, as music of the lower classes, and as music with unknown composers. It has been contrasted with commercial and classical styles. One meaning often given is that of old songs, with no known composers; another is music that has been transmitted and evolved by a process of oral transmission or performed by custom over a long period of time. Starting in the mid-20th century a new form of popular folk music evolved from traditional folk music. This process and period is called the folk revival and reached a zenith in the 1960s. The most common name for this new form of music is also "folk music", but is often called "contemporary folk music" or "folk revival music" to make the distinction. This type of folk music also includes fusion genres such as folk rock, folk metal, electric folk, and others.
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Blues is the name given to both a musical form and a music genre that originated in African-American communities of primarily the "Deep South" of the... United States at the end of the 19th century from spirituals, work songs, field hollers, shouts and chants, and rhymed simple narrative ballads. The blues form, ubiquitous in jazz, rhythm and blues, and rock and roll is characterized by specific chord progressions, of which the twelve-bar blues chord progression is the most common. The blue notes that, for expressive purposes are sung or played flattened or gradually bent in relation to the pitch of the major scale, are also an important part of the sound. The blues genre is based on the blues form but possesses other characteristics such as specific lyrics, bass lines and instruments. Blues can be subdivided into several subgenres ranging from country to urban blues that were more or less popular during different periods of the 20th century. Best known are the Delta, Piedmont, Jump and Chicago blues styles.
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