| jazz | A means of performing music. There are many moods and styles, but improvisation is an inherent characteristic of jazz.
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| blues | A black vocal music.
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| Rural or country blues | Folklike vocal blues.
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| twelve-bar blues | The standard form of the blues, consisting of three-line stanzas with four bars, or measures, in each line.
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| scatting, scat singing | Vocal improvisation on neutral syllables.
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| classic blues | Professional, stylized blues, conceived for performance in theaters and clubs and for commercial recordings.
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| race records | Term used before 1949 by the popular music industry for recordings intended for an African American audience. (Later called rhythm and blues.)
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| urban blues | Blues pieces written for publication and professional performance, often slightly altered from the standard twelve-bar form.
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| combo | Small jazz ensemble.
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| New Orleans jazz | Virtuosic improvisation by members of a jazz combo on a given (already known) melody.
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| Dixieland | A white imitation of New Orleans jazz, faster and more intense than the original style. Dixieland was introduced in Chicago.
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| piano blues or boogie-woogie | A popular piano style with the form and harmony of the twelve-bar blues, but faster in tempo and with a dance beat.
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| eight-to-the-bar | The ostinato accompanying a boogie, dividing each of the four counts in a measure into a long and a short beat.
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| stride piano | A jazz piano style in which the left hand alternates low bass notes on one and three with midrange chords on two and four.
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| coda | A closing section.
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| sweet jazz | Music with the sound and flavor of jazz, but arranged so as to require little improvisation.
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