Nerd's proposal that - without American involvement - there wouldn't have been a Revival in England after World War II isn't justified - though it IS widely believed.

During and after the War, BBC Radio programmes like 'Countryside Magazine' featured traditional singers and versions of recently collected songs sung by professional singers, whilst newsreels and radio feature programmes recorded customs. The Opie's work on children's folklore began just after the War and owed nothing to American influence.

The arrival of American singers and a greater availability of American music - via American forces radio and recordings - was important, but it changed rather than created an interest in folksong, dance and tradition.