I'm sorry to hear of Peter's death. I knew him in Berkeley in the early 60s, and I remember his joy at the birth of his son Matthew. He was thrilled in the late 60s when Ravi Shankar, visiting SF, stopped by the shop Peter and his wife ran on Haight Street. Shankar listened to Peter play his guitar and paid him a polite compliment. Who could ask for anything more?
We left the SF area and lost touch with Peter in 1971. I hope he had a happy life. He was a nice man.