Yuri Sergeyevich Entin (born 21 August 1935 in Moscow) is a Russian and Soviet poet, playwright, and lyricist who wrote screenplays and songs for various children's films including The Bremen Town Musicians (1969) and two sequels (with Vasily Livanov) and Blue Puppy (1976), among others. He also wrote music with Bulat Okudzhava for the 1975 film The Adventures of Buratino.

For more information press the link below:
https://en.wikipedia.org/wiki/Yuri_Entin