Poly High to Robert Sherman in 7 Steps

1. Poly High was written by Harry Nilsson
2. Harry Nilsson sang Mother Nature's Son
3. Mother Nature's Son was written by John Lennon
4. John Lennon produced Mucho Mungo-Mt. Elga
5. Mucho Mungo-Mt. Elga features bass played by Klaus Voormann
6. Klaus Voormann played bass for You're Sixteen
7. You're Sixteen was written by Robert Sherman

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