On a recent afternoon, the singing coach Suzi Zumpe was running through a warm-up with a student. First, she straightened her spine and broadened her chest, and embarked on a series of breath exercises, expelling short, sharp bursts of air. Then she brought her voice into action, producing a resonant hum that started high in a near-squeal, before sinking low and cycling up again. Finally, she stuck her tongue out, as if in disgust: a workout for the facial muscles. Full story.
Andrew Dickson (The New York Times) / February 16, 2021