Groove is a popular music term, used in the sense of rhythm, for meter_(music) and its embellishment by a rhythm section. Richard Middleton (1999) describes, "the concept of groove - a term now theorized by analysts but long familiar in musicians' own usage - marks an understanding of rhythmic patterning that underlies its role in producing the characteristic rhythmic 'feel' of a piece, a feel created by a repeating framework within which variation can then take place." Popular music is music belonging to any of a number of musical styles that are accessible to the general public and mostly distributed commercially. ... Rhythm (Greek ρυθμός = tempo) is the variation of the duration of sounds or other events over time. ... The metre, or meter, is the basic unit of length in the International System of Units (SI: Système International dUnités). ... Rhythm section refers to the musicians whose primary jobs in a jazz or popular music band or ensemble is to establish the rhythm of a song or musical piece, often repeated riffs or ostinati. ... Richard Middleton may be Richard Middleton (Lord Chancellor) medieval theologian, philosopher and Lord Chancellor Richard Middleton (writer) (1882 - 1911) British poet and ghost story writer Richard Middleton (musicologist) This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... In music, variation is a formal technique where material is altered during repetition; reiteration with changes. ...

Source

• Middleton, Richard (1999). Form. Key Terms in Popular Music and Culture. Malden, Massachusetts. ISBN 0631212639.

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