Saint-Saëns also contributed voluminously to the French concertante literature. He wrote five piano concertos, three violin concertos, two cello concertos, and about twenty smaller concertante works for soloist and orchestra. Among these works are three 'Morceau de Concert's', one each for harp, horn, and violin and orchestra. His 'Morceau de Concert for Horn' (opus 94) was written as a version for horn and piano in October 1887, and then completed in a version for horn and orchestra one month later.