Original: Also , '' Beasts of England '' , the song that came to Old Major in his dream , was later banned on Animal Farm by Napoleon , at which time it was replaced by '' Animal Farm '' , a hymn composed by Minimus the pig that pledges allegiance to Animal Farm and to work to protect it .
Simplified: He also remembered a song sang by the animals of old , '' Beasts of England '' , which the animals learned very fast .