Agatha Beiderbecke asked a close family friend, Albert Petersen, to listen to her seven-year-old son play the piano. According to the biography Bix, Man and Legend, Petersen could hardly contain his enthusiasm. “Agatha, this boy has something.” He said. “Keep me informed about his progress – and whatever you do, get him some piano lessons.” One might expect a friend – and her cousin’s husband – to be encouraging. But Petersen was also one of Davenport’s leading musicians, bandleaders, and teachers. He also began his career in music at a young age.