Morton Feldman died 20 years ago. I think he would have been impressed with his posthumous career, at the steady production of books of his writings, at the CD racks full of his music, at the numbers of performances his works continue to receive. He would have enjoyed last year’s Huddersfield Contemporary Music Festival too, because the new director of the Festival, Graeme McKenzie, decided that his first festival programme would make a major feature of Feldman’s music. McKenzie invited John Tilbury and the Smith Quartet to play all the music for piano and strings. It was a bold decision on all sides. In Feldman’s music there is nowhere for musicians to hide; it is music in which the articulation of every subtle nuance reveals almost as much about the personality of...