This is going to be a longshot, but back in the, (probably) late 90s a friend of mine had a cassette tape of an after show. At least I think it was an aftershow. The band was definitely the Michael B., Sonny T., Tommy B., etc... I never owned it, but I vividly remember Prince doing one of his On The One things and letting Levi play some of his faux George Benson licks after the band stopped. I guess it was funkier than Prince expected, cuz the band came back in and he stopped them by saying, "wait a minute" and then he played his own solo guitar stuff. It was all chords, clean tone and very funky. I remember that they played Johnny at that show, (hell, the song I'm talking about may have been Johnny as it was about the same speed and style of vamp as I recall). Sooo funky. Anyway, it sounded to me like an audience recording, but a fairly clean one for that. Any ideas?

it might either be the DNA show from 93, the chicago cabaret show of 93 or the yokohama show from 92.

Thanks for the info! I also remember that it had a guitar intrumental that reminded me a lot of Villanova Junction by Hendrix, though now I feel like I heard at some point that it was actually a Santana song.