Jack Douglas, a legendary producer and engineer who worked on iconic albums by Aerosmith , John Lennon , and Cheap Trick , among others, died at age 80 on Monday, May 11th. His daughter Sarah told Rolling Stone that her father passed away after a battle with lymphoma, with his family issuing the following statement: “He most enjoyed being with his family — his wife, his four children and five grandchildren — and he died peacefully, with us surrounding him. He lived an incredible life and was an amazing storyteller. He was very, very funny and goofy and loved to tell jokes. He loved what he did, and he worked til the very end. We will miss him a lot.” Douglas, who was born in the Bronx, New York, started out as a folk musician, and penned songs for Robert F. Kennedy’s presidential campaign. He initially got a job at the New York City studio the Record Plant as a janitor before working as an engineer on albums by Miles Davis and the James Gang.…