jazz and swing

In music, the term swing has two main uses. Colloquially, it is used to describe the sense of propulsive rhythmic "feel" or "groove" created by the musical interaction between the performers, especially when the music creates a "visceral response" such as feet-tapping or head-nodding (see pulse). The term is also used more specifically, to refer to a technique (most commonly associated with jazz but also used in other genres) that involves alternately lengthening and shortening the pulse-divisions in a rhythm.

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