I was saddened to read of the New York Philharmonic’s unprofessional behavior at rehearsals of Morton Feldman’s Coptic Light in 1986. I was at the performance of that piece. It is worth noting that the conductor for that concert, if I recall correctly, was Gunther Schuller. It is hard to imagine Gunther participating in that kind of unprofessionalism, even though this would have been music rather distant from his own principal interests. Note too, that (again, if memory serves), Gunther conducted Arvo Pärt’s Tabula Rasa on the same program; this two years after I heard him conduct Andriessen’s De Staat at Tanglewood. I have heard some label Gunther as one of the big bad high-modernists, narrow-minded both in his own writing and in his programming, but the fact is a rather more nuanced picture would be more accurate.