Unlike most bluesmen, Son calls each of the standard tuning keys by their right names, save for C, which he calls F. (Booker White calls E G, C cross-G, and A Ab or Db; Robert Pete Williams, Rubin Lacy and Skip James all refer to E as C natural.) However, in other matters Son approaches the delta blues norm. For instance "minor" means any note or chord on or above the fifth fret, and "major" any note or chord below it. . . . In addition, Son uses a rather vague system of string classification, using soprano, alto, tenor and bass. Skip is more definite; from the sixth string to the first they are 6) bass or subtone, 5) baritone, 4) alto, 3 + 2) tenors, 1) soprano. Skip also refers to triplets, 16th, 32nd, and 64th notes, tonics, subdominants, and 2/4 and 4/4 time, all incorrectly. It turns out he bought an "Exegesis of Musical Knowledge" from H.C. Speir in 1931 and skimmed it.
-as told by Al "Blind Owl" Wilson, 1960s