The Adèsives were out in force at Covent Garden last Monday for the UK première of their hero’s third opera, The Exterminating Angel, unable to contain their rapture until the piece was over, yelling their excitement even at the interval. Thomas Adès’s opera is closely based on Buñuel’s film of 1962, with the text adapted by the composer and Tom Cairns, who also directs the production, which was first seen last July in Salzburg, with a cast mainly identical to the Royal Opera’s.