What do Paul Simon, Aretha Franklin, The Rolling Stones , and Lynyrd Skynyrd, have in common? Each of these legends has recorded at Muscle Shoals, a unique recording studio located in Sheffield, Alabama, that is owned and operated by Noel Webster, a relatively mysterious character. In the latest episode of Southword, a collaboration between NPR and the Oxford American, Dave Anderson manages to keep Webster on camera long enough for him to articulate the essence of his “rickety” studio that was built on a foundation of passion, soul, and emotion.