CHICAGO (AP) — Ian Anderson of Jethro Tull purposely avoided learning about Jethro Tull the agricultural pioneer for years. Anderson says he was embarrassed that their agent named the band after a dead guy in 1968 and Anderson felt getting close to Tull would be a betrayal. Anderson changed his mind a year ago and wrote a stage production based on Tull. Anderson says he was amazed how many parallels there were between Tull’s life and Anderson’s songs. Anderson says it’s not boring because it incorporates the greatest hits of Jethro Tull the band and he’s writing a show for toe-tappers. The show began its North American tour last night in Chicago.