Most ignorance is vincible ignorance. We don't know because we don't want to know.
There is an apprenticeship system in jazz. You teach the young ones. So even if the musicians weren't personally that likable, they felt an obligation to help the younger musicians.
My very first audition was on the lot of Paramount, and I was put on tape and it was very nerve-racking. I think it was about 15 pages.
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