The Chicago-born guitarist began playing at age twelve. While spending some formative time in Memphis, he started playing gospel music at age thirteen. By age fourteen, Johnson was playing in R&B groups. Although Johnson's parents brought him up hearing the music of Duke Ellington, Count Basie, Joe Williams, and other artists of that era, it was not until 1967 that Johnson was formally introduced to jazz by hearing guitarist Wes Montgomery. In 1976, he went on the road with jazz organist Jack...