Dylan resigned himself to Rundown, where he and his band worked through his songs over a period of several weeks. Sometime in late April, veteran producer Bumps Blackwell stopped by to see Dylan. Blackwell was best known for producing Little Richard's most celebrated recordings, and though the purpose of his visit remains unclear, Blackwell ultimately produced that day's session, supervising recordings of "Trouble", "Magic" and "Shot of Love" that were later selected for the album. The experience gave Dylan an enormous amount of satisfaction, as he would later reveal in subsequent interviews, but Blackwell did not return for further work, possibly because of health issues.