Listen to Variations on a Theme of Paganini, Op. 35: Variation 20 online. Variations on a Theme of Paganini, Op. 35: Variation 20 is an English language song and is sung by Alessio Bax. Variations on a Theme of Paganini, Op. 35: Variation 20, from the album Alessio Bax plays Brahms, was released in the year 2012. The duration of the song is 0:20. Download English songs online from JioSaavn.