Listen to Rhapsody on a Theme of Paganini, Op. 43: Variation XXIII - L'istesso tempo online. Rhapsody on a Theme of Paganini, Op. 43: Variation XXIII - L'istesso tempo is an English language song and is sung by Sergei Rachmaninoff and Leopold Stokowski. Rhapsody on a Theme of Paganini, Op. 43: Variation XXIII - L'istesso tempo, from the album Sergei Rachmaninoff: Complete RCA Recordings, was released in the year 2014. The duration of the song is 0:49. Download English songs online from JioSaavn.