Bruce Davison to Blackbird in 7 Steps

1. Bruce Davison appears in Access All Areas
2. Access All Areas features an appearance by Harry Nilsson
3. Harry Nilsson sang backing for Old Dirt Road
4. Old Dirt Road features piano played by John Lennon
5. John Lennon wrote She's Leaving Home
6. She's Leaving Home was written by Paul McCartney
7. Paul McCartney wrote Blackbird

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