The Rhapsody on a Theme of Paganini, Op. 43, is a concertante work written by Sergei Rachmaninoff for piano and orchestra, closely resembling a piano concerto, all in a single movement. Rachmaninoff wrote the work at his summer home, the Villa Senar in Switzerland, according to the score, from 3 July to 18 August 1934. Rachmaninoff himself, a noted performer of his own works, played the piano part at the piece's premiere on 7 November 1934, at the Lyric Opera House in Baltimore, Maryland, with the Philadelphia Orchestra conducted by Leopold Stokowski.