For three or four decades now, perhaps the most influential electric guitarist in American popular music has been relegated to near-anonymity. Were he still alive, Michael Bloomfield presumably wouldn’t have it any other way; for him, the music itself was always the only thing that really counted. But interest in Bloomfield's groundbreaking work has been escalating lately - his name seems to pop up more often than it used to, usually with musicians and fans who were around for his '60s heyday and are being drawn back to him. Helping the buzz along, and perhaps attracting new fans in the process, is the recent three-CD/one DVD box set From His Head to His Heart to His Hands, which bundles his "greatest hits" with Paul Butterfield, the Electric Flag and Al Kooper's Super Session projects together with a little of his work as a sideman (most notably, for Bob Dylan) and a whole bunch of previously unreleased stuff, much of it acoustic. Kooper made some questionable decisions, such as editing the Flag gem "Killing Floor" and including his own tribute "They Just Don’t Make 'Em Like That Anymore" as an unlisted bonus track. But the music that’s there remains hard to beat, and the box offers a roadmap to Bloomfield's oft-baffling career, which ended conclusively with a fatal drug overdose early in 1981, but which had been essentially moribund for a decade at that point.