And another thing....

When I write -
Would Jim Carroll have told source singers "That's not good enough. I'm not going to record you until you've done a bit more practice."?
Jim correctly relied -
What a daft question; of course I wouldn't

It was meant to be a daft rhetorical question assuming that answer. The unspoken question was "So why would you apply different standards to people performing in clubs now?" That's why I was so knocked back when I took Jim to be saying that he considered some of the people he recorded not good enough to go on in clubs (or capable of deciding for themselves whether they wanted to). Seems that wasn't what he meant so all is well.