In contrast to the current zeitgeist, the day after Britain declared war on Germany, the BBC held a Wagnerfest: https://www.bbc.co.uk/events/rjbnc8/by/date/1939

In contrast to the current zeitgeist, the day after Britain declared war on Germany, the BBC held a Wagnerfest: https://www.bbc.co.uk/events/rjbnc8/by/date/1939/09/04 https://www.bbc.co.uk/events/rjbnc8/by/date/1939/09/04 If anything, German composers seem to have became more popular in Britain at that time. I can only hazard a guess, but it may have been symbolic -- a rejection of the Nazi claims to all of German culture and German exceptionalism.