Exactly 69 years ago today, on April 24, 1945, a young trumpet player named Miles Dewey Davis got the chance of a lifetime. He had recently left his native East St. Louis for New York City, and at only seventeen years old, he was playing alongside the legendary Charlie Parker. On this day, he was heading into the recording studio for the first time. Perhaps he wasn't quite up to the task: in his first recordings, Miles' playing comes across as tentative, especially when compared to Parker's confident saxophone. But Miles soon found his voice, and over the next forty five years, his vision pushed him into uncharted territory and repeatedly redefined the scope of jazz.