Muddy Waters’ Folk Singer remains rightly revered as the greatest-sounding blues album ever released—and, to date, one of the only bonafide audiophile records in the genre. Originally issued in 1964 by Chess Records, the all-acoustic work has made the rounds as a demonstration disc and benefitted from myriad reissues, all of which sought to improve upon Willie Dixon and Ralph Bass’ legendary, subtlety-abundant production while bringing the musicians into your room. More than five decades after Waters, Buddy Guy, and company initially gathered in a Chicago studio in September 1963, those feats (and more) are finally accomplished in definitive, unsurpassed fashion courtesy of Mobile Fidelity.