The Variations on a Theme by Joseph Haydn,, now also called the Saint Anthony Variations, is a work in the form of a theme and variations, composed by Johannes Brahms in the summer of 1873 at Tutzing in Bavaria. It consists of a theme in B♭ major based on a "Chorale St Antoni", eight variations, and a finale. The work was published in two versions: for two pianos, written first but designated Op. 56b; and for orchestra, designated Op. 56a.
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