Rondo

Rondo (Ital.), the most obvious and elementary form in music, in which the first subject, clearly marked out, followed by a second, more or less definite, recurs again in its original key. In later developments the repetition may take place twice, thrice, or even four times, sometimes in part only, or in modified form, the intervening sections being varied in different ways. A large proportion of songs and instrumental pieces are in this form; and the final movement of a sonata, symphony, or concerto is frequently a rondo.