Definitions for "Theme and variations"
A movement type where the given theme is modified in a series of variations. It amounts to glorified strophism: elements of the theme change while the basic structure remains the same. (The slow movement of Haydn's "Emperor" Quartet is a good example, CD 2. ) Later composers, notably Brahms (Variations on a Theme by Haydn, GP 65 ), vary the theme and its surroundings so completely that you may lose track of the original as you go along.
Popular form in which a theme is followed by variations that preserve the phrase lengths and harmonization of the theme while varying its rhythms, melodies, and textures.
Compositional procedure in which a theme is stated and then altered in successive statements; occurs as an independent piece or as a movement of a sonata cycle. These excerpts demonstrate the opening theme and a later variation based on a change to the minor mode. Example: Haydn, Symphony No. 94 ( Surprise), third movement, opening theme Real Audio: 28K | 56K | About this album Example: Haydn, Symphony No. 94 ( Surprise), second movement, second variation Real Audio: 28K | 56K | About this album
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