 They created songs, plays and other events in a similar manner to the Critics, culminating in the Vietnam Victory Show of April 1975 which celebrated the final liberation of Saigon, or Ho Chi Minh City.Former Critics Group members performing, writing, recording, teaching and collecting include Michael Rosen, Frankie Armstrong, Sandra Kerr, John Faulkner, Jack Warshaw and Bob Blair.As recently revealed in privately held recordings of Critics Group meetings (as discussed in a 2012 BBC radio programme presented by Martin Carthy – 
), Ewan MacColl had developed strong views about the skill required to learn and perform folksongs, the extensive untapped range of the repertoire, composing new songs and how to sing them.