Herbie Hancock ends his last chorus on Wayne Shorter’s “Fee Fi Fo Fum” with this memorable triplet polyrhythm. The melodic content is triad arpeggios from B Lydian with an ascending root motion (F♯ major, G♯ minor, A♯ minor, B major, C♯ major). The rhythmic tension is derived from rhythmic groups of four performed in the triplet subdivision (♪♪♩).  The polyrhythmic effect is further emphasized by Hancock’s left hand voicings occurring at the beginning of each new triad (voicings not notated, but indicated with accent markings).


Herbie Hancock on "Fee-Fi-Fo-Fum" from Speak No Evil (1964)