"I'll Bet He's Nice"

Yester-day, I was thinking about "I'll Bet He's Nice," specifically the first two lines ("I'll bet he's nice / I'll bet he's twice").  They're sung to the same melody and have almost the same accompaniment*, and I realized that this musical doubling matches that "twice."  (The full description spills over into the next line:  "twice / As nice as me.")

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*As far as I can tell, the only difference is the right-panned synth phrase; the second time, it's G Ab Bb Ab instead of G Ab Bb G.