The Carnival of the Animals (French: Le Carnaval des animaux) is a humorous musical suite of 14 movements, including "The Swan", by the French composer Camille Saint-Saëns. About 25 minutes in duration, it was written for private performance by two pianos and chamber ensemble; Saint-Saëns prohibited public performance of the work during his lifetime, feeling that its frivolity would damage his standing as a serious composer. The suite was published in 1922, the year after his death. A public performance in the same year was greeted with enthusiasm, and it has remained among his most popular. It is less frequently performed with a full orchestral complement of strings. This arrangement of Aquarium has been written for harp ensemble and was commissioned for the National Children's Orchestra of Great Britain Harp section in 2021.