In 1977 during my incubation in Washington, D.C. I lived at the Copely Plaza on 17th street, N.W.. My cousins' neighbor allowed me to go into his apartment during the day to play his piano whenever I wanted to. I couldn't do much else at the time: my mind was a car wreck that would take 20 years to sweep up.
A guy I later met said sometimes he'd come strolling down Church street and hear piano music coming from somewhere. He found the basement window that opened to the sidewalk, and it was me playing the piano. He later said it sounded so much like Vince Guaraldi.
I asked, "Who's Vince Guaraldi?" Vince Guaraldi Trio - Linus and Lucy - Jazz Impressions of A Boy Named Charlie Brown - YouTube