Listen to Variations on a Theme by Schumann, Op. 23 for Piano Four Hands: Variation II online. Variations on a Theme by Schumann, Op. 23 for Piano Four Hands: Variation II is an English language song and is sung by Paul Komen and Patricia Verhagen. Variations on a Theme by Schumann, Op. 23 for Piano Four Hands: Variation II, from the album Four Hands Piano Music, was released in the year 2002. The duration of the song is 1:11. Download English songs online from JioSaavn.