Reminded of Artie Shaw, jazz clarinet and bandleader. Applied for a job in a band when he was 15 (?), he already had a bit of a reputation as a player. Paraphrased, the story goes;
"the bandleader said to me "Can you read?", and I thought he meant books, words, so I said "Yeah, I can read". So he puts some sheet music down in front of me, and I didn't know what to do with it. So I said to him "Can you hold the job for me for a week? I'll be back in a week, and we'll do this again". A week later, I got the job."
It'll be on YouTube somewhere, but ...