I was four-and-a-half when my parents had a piano left by tenants who evacuated during the First World War. My parents didn’t leave; they had a comfortable home in Krakow… and there was somewhere to put the piano. And so I started when I was four, and straight away, with both hands. I found my own harmonies to play, and I was whistling, and I was singing, and I put a tambourine on my leg.