How it all began and how 1215 ushered in a new era with the round - and how today's top vocal groups use these original principles.
Discover 11,128,835 listings and 279,786 playable programmes from the BBC
How it all began and how 1215 ushered in a new era with the round - and how today's top vocal groups use these original principles.
Radio 2: Amazing music. Played by an amazing line-up. The home of great music, entertainment and documentaries
