Lloyd "Tiny" Grimes was an American jazz and R&B guitarist. He was a member of the Art Tatum Trio from 1943 to 1944, was a backing musician on recording sessions, and later led his own bands, including a recording session with Charlie Parker. He is notable for playing the electric tenor guitar, a four-stringed instrument.

Arthur Tatum Jr. was an American jazz pianist who is widely regarded as one of the greatest ever. From early in his career, fellow musicians acclaimed Tatum's technical ability as extraordinary. Tatum also extended jazz piano's vocabulary and boundaries far beyond his initial stride influences, and established new ground through innovative use of reharmonization, voicing, and bitonality.