Listen to Variations on a Rococo Theme, Op. 33 online. Variations on a Rococo Theme, Op. 33 is an Instrumental language song and is sung by Mstislav Rostropovich, Gennady Rozhdestvensky and Leningrad Philharmonic Symphony Orchestra. Variations on a Rococo Theme, Op. 33, from the album Pyotr Ilyich Tchaikovsky: Variations on a Rococo Theme & Souvenir De Florence, was released in the year 2013. The duration of the song is 18:51. Download Instrumental songs online from JioSaavn.