It seems improbable that the Tallis Scholars can have given their first concert 40 years ago: while the rest of us have crumbled, their conductor, Peter Phillips, hardly seems older now that he did when he founded the group. New music has been an increasingly important part of their repertoire over the decades, rubbing shoulders with the Renaissance stalwarts, and so it was gratifying that their anniversary concert should feature two world premières and one first London hearing. The venue on 7 March could hardly have been more imposing: the singers were stationed under the dome of St Paul's Cathedral, the audience radiating out from them towards three of the four points of the compass; and it seemed that most of the British musical establishment had come to pay homage and say thanks.