I've a feeling it was longer than the 19 minutes posted here, I coiuld have been splitting it to post????? Jo Wallace will know she was on the show.
Anyway I can't find the "listen again" archive on t'BBC but there is the info about the show...
Soul Self Satisfaction: The Story of Northern Soul
Saturday 22 October 2005 10:30-11:00 (Radio 4 FM)
Writer and cultural historian CP Lee explores the strange world of Northern Soul music, which first landed on British shores in the early 1960s. This movement instantly created an underground cultural phenomenon for teenagers who previously had nowhere to go. The Northern Soul scene was driven by a love of Black American artists who had failed to make a success in the USA.
Followers of the Northern Soul fraternity include the designer Wayne Hemingway, music producer Ian Levine, DJ Jo Wallace, and lifelong soul boy Stuart Cosgrove, all of whom describe their passion and experiences of Northern Soul music.