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).