Johannes Brahms: Sonata for Two Pianos, Op. 34b / Variations on a Theme by Haydn, Op. 56b is and English album released in 2006. There are a total of 14 songs in Johannes Brahms: Sonata for Two Pianos, Op. 34b / Variations on a Theme by Haydn, Op. 56b. The songs were composed by The Friedland-Zak Duo, a talented musician. Listen to all of Johannes Brahms: Sonata for Two Pianos, Op. 34b / Variations on a Theme by Haydn, Op. 56b online on JioSaavn.