Swingler was an accomplished
flautist, playing regularly with the professional
London orchestras. He was later much involved in musical collaboration as a librettist, including song cycles with
Benjamin Britten (
Advance Democracy, 1938),
Alan Bush (
The Winter Journey, 1946) and
Alan Rawsthorne (
A Canticle of Man, 1953). His friend
John Sykes also set the four poems of
Homage to John Dowland in 1957. Among several notable pieces, Swingler co-wrote
Ballad of Heroes with Britten and the poet
W. H. Auden and wrote a new version of the English lyrics of the Polish revolutionary song "
Whirlwinds of Danger". There are settings of his verse by
Arnold Cooke,
Christian Darnton,
Erik Chisholm,
Norman Demuth,
John Ireland,
Elisabeth Lutyens, and
Bernard Stevens. Since his death, Swingler has been recognised as a central figure in communist English poetry. His biographer, the poet
Andy Croft, has written that, as an editor, speaker, organiser, journalist, critic, playwright, poet, librettist, novelist and publisher, he was one of the leading figures in the cultural activities of the Communist Party. Croft has also calls him "the last of the Georgian poets" and says that his poetry "had a moral and political urgency". He was also involved in work for the
Unity Theatre, and was the literary editor of the
Daily Worker, often reviewing books for
The Times,
The Manchester Guardian, amongst other newspapers. ==Politics==