"I used to be able to run down these," whispered a wobbly 77-year-old Harrison Birtwistle to friends as he stumbled down the stairs to the Queen Elizabeth Hall stage to take his bow at last night's London Sinfonietta concert (for some inexplicable reason part of Ray Davies's Meltdown series at the Southbank). Birtwistle and his former partner-in-crime Peter Maxwell Davies - and their feral musical creations - used also to be very good at running foul of the musical establishment. For some reason, Sirs, Harrison Birtwistle, CH, and Peter Maxwell Davies, CBE, Master of the Queen's Music, don't do much of that these days.