Question: What is the name of the international company set up in 1977 by English composer and impresario of musical theatre whose well-known works include "The Phantom of the Opera" and "Jesus Christ Superstar"? 
Sentence (from "Andrew Lloyd Webber"): He has composed 13 musicals, a song cycle, a set of variations, two film scores, and a Latin Requiem Mass.
Relevant evidence: No