I heard an hour long casual interview of Billy Eckstine, and it was the most impressive interview I've ever heard. I never thought about a musicians education, or ability to utilize the English Language in order to express themselves; but Mr. Eckstine's facility with the language indicated a formal education that included more than music. Miles was just the opposite, but he sure could blow that trumpet. Just a little trivia that I've been exposed to over the years.
The most entertaining discussions are about "Nahlins" when Louis was a young man; they always include the "cathouses" and nicknames. When you hear Dr. John using those nicknames in his songs, he didn't just make some of them up, they represent real characters in New Orleans. I can't think of any of them right now, but they would have you crackin up. The discussions I heard came from Lincoln Center, so maybe I can look them up
Enjoy the music.