Conqueroo sent over these details: In Session was taped in 1983 in the Hamilton, Ontario studios of CHCH-TV. The syndicated Canadian concert TV series was conceived and produced by Ian Milne Anderson as a way of pairing artists with deep mutual admiration, such as Campbell and Webb, B.B. King and Larry Carlton, Dr. John and Johnny Winter, and Albert King and Stevie Ray Vaughan. (The King-Vaughan appearance is available on a Stax Records CD/DVD set also titled In Session.)

With Webb at the piano, the show featured Campbell on guitar, singing and playing the hits "Wichita Lineman," "Galveston," and "Where's the Playground Susie" along with less prominent Webb tunes including Campbell's only known recording of "Sunshower," initially written and produced for soul singer Thelma Houston.

Their first meeting may have been when Campbell went to Webb's house to listen to what would become one of Campbell's defining songs, "Wichita Lineman," which he and his producer had commissioned from the Oklahoma tunesmith. Already Campbell had hit big with "By the Time I Get to Phoenix," although it hadn't been written with him in mind (the singer had heard a version by Johnny Rivers who in turn had heard it on an unreleased Motown recording by Tony Martin). But once Campbell's "Phoenix" sailed up the charts, they worked together to create several subsequent hits, relying on their musical chemistry and personal respect.

Campbell remains one of Webb's closest friends. "What is happening with Glen, which is basically his long goodbye, is really one of the most painful things I've been through in my life," said the songwriter of Campbell's public battle with Alzheimer's disease. "There's no way it can compare to what has happened with the family, but in terms of someone outside the family, I would have to be the one who feels the most."