Ezrin and Gilmour reviewed Waters's concept, discarding what they thought was not good enough. Waters and Ezrin worked mostly on the story, improving the concept. Ezrin presented a 40-page script to the rest of the band, with positive results. He recalled: "The next day at the studio, we had a table read, like you would with a play, but with the whole of the band, and their eyes all twinkled, because then they could see the album." Ezrin broadened the storyline, distancing it from the autobiographical work Waters had written and basing it on a composite character named Pink. Engineer Nick Griffiths later said: "Ezrin was very good in "The Wall", because he did manage to pull the whole thing together. He's a very forceful guy. There was a lot of argument about how it should sound between Roger and Dave, and he bridged the gap between them." Waters wrote most of the album, with Gilmour co-writing "Comfortably Numb", "Run Like Hell", and "Young Lust", and Ezrin co-writing "The Trial".