His mother taught him how to play the banjo, later buying him an acoustic guitar.
Po Lennonovi smrti je bilo objavljenih še več del, tudi Skywriting by Word of Mouth" (1986); "Ai: Japan Through John Lennon's Eyes: A Personal Sketchbook" (1992), z Lennonovimi ilustracijami in definicijami japonskih besed, in "Real Love: The Drawings for Sean" (1999).