Andrew Lloyd Webber is a British composer who has written many successful musicals, including Cats and The Phantom of the Opera. He started writing music at a young age, and had completed a suite of six pieces when he was nine years old. He also liked to put on “productions” with his brother Julian and his Aunt Viola in his toy theatre. When he was 15, he wrote music for Old Possum’s Book of Practical Cats, which later became the Broadway hit Cats. There is no confirmation that Andrew Lloyd Webber is autistic.