Here's the section that mentions the Roof thread:
31) On a Bernie RIP thread over on the Bentley's Roof forum, a poster called 'borebage53' remembered Bernie in his later years, and his 'song and dance in cabaret style on station platforms'.
A fascinating observation, as the young Bernie harboured ambitions of becoming a variety entertainer. This is a letter from the early 60s:
Bernie was a regular at live events around that time, but only as an audience member, not as a performer.
As well as Louis Armstrong, he also saw The Beatles, plus Gene Vincent and Eddie Cochran, just before the car crash that only Gene survived.