“I think we’ve exploited you enough. I just want you to know I’m signing you!” With those words, spoken by John Hammond Sr. and heard on the first disc of Legacy Recordings’ new 3-CD/1-DVD box set From His Head to His Heart to His Hands, Michael Bloomfield became a Columbia Records recording artist. Though he died in 1981 at the age of 37, the blues guitarist extraordinaire left behind a substantial body of work in a variety of musical settings. Perhaps he never fulfilled the entirety of his