What is the significance of " The Beast Of England "?

"Beasts of England", the original anthem of the Animal farm corresponds to the famous socialist anthem, The Internationale, but also alludes to Shelley's Men of England. In the book, the pig Old Major explains his dream of an animal-controlled society three nights before his death.....The animals sing "Beasts of England" frequently after the rebellion, especially after meetings. At one point when Clover the horse questions the direction of Animal Farm, she sings "Beasts of England" which causes the other animals to join in......After "Beasts of England" has been used to express criticism of the direction of Animal Farm, Napoleon tries to supplant the song, arguing that such an anthem is antiquated and no longer needed after the rebellion has been completed. The anthem is first replaced by the short "Animal Farm!" and later by "Comrade Napoleon", while "Beasts of England" is eventually outlawed. The phasing out of "Beasts of England" as the anthem of Animal Farm corresponds to the Soviet Union's 1944 replacement of The Internationale with the National Anthem of the Soviet Union. These excerpts are from the below source-link.