Singing has changed. When I was a kid it was still usual for people to sing at home, and in a lot of workplaces people sang too, often in chorus. Milkmen and coalmen and bakers' deliverymen and building workers whistled tunefully and skilfully. There were professional singers, and amateur performers, but singing was also a personal thing, practised at parties and at home. All gone now. Recording has enriched us, but has also robbed us.