High Quality Content by WIKIPEDIA articles! The Variations on a Rococo Theme, Op. 33, for cello and orchestra was the closest Pyotr Ilyich Tchaikovsky ever came to writing a full concerto for cello and orchestra. The style was inspired by Mozart, Tchaikovsky`s role model, and makes it clear that Tchaikovsky admired the Classical style very much. However, the Thema is not Rococo in origin, but actually an original theme in the Rococo style.