One my favorite songwriters. Wonderful doo-wop a capella tune, UTR category (urgent tab request).
Three parts, chorus [ A ], verse [ B ], and bridge [ C ]. Not too difficult, except for that one jump up the Dm on the fifth fret at the end of the verse. In the verse, the beats 2 and 4 during the C-chord are played with a slight palm-mute. They contain no melody, just there to keep the beat. You should find someone to do the finger-snipping.