“Klein wrote of “one unique continuous ‘sound,’ drawn out and deprived of its beginning and of its end.” In practice, to maintain a tone without variation, the orchestra had to choreograph an unsynchronized, staggered movement. Together, but not in unison, the part of each individual musician was visible but aurally imperceptible. Mouths paused for breath, the note was trapped between the bows’ dead ends, but the overall sound had no corners. Only the conductor, with his arms lifted in continuous embrace, palms open upwards, embodied steadiness.”