"Mr. P.C." is a twelve-bar jazz piece in minor blues form, composed by John Coltrane in 1959. The song is named in tribute to the bass player Paul Chambers,[1] who had accompanied Coltrane for years. It first appeared on the album Giant Steps, where it was played with a fast swing feel.[2]
Coltrane researcher Lewis Porter has written about the composition's relationship to the melody of the 1931 popular song "Shadrack" by Robert MacGimsey, which is itself believed to be based on earlier folk songs. [3] Saxophonist Sonny Rollins recorded "Shadrack" in 1951 for his Sonny Rollins Quartet 10" album, and Louis Armstrong can be seen singing "Shadrack" in the 1951 film The Strip.