Tenor Ben Heppner reflects on the vocal crisis two years ago that kept him off the stage for eight months. “Those performances are seared on my memory. I had a panic attack. It was like my heart was beating 150 beats a minute. I was sweating in places I never knew I could sweat. Every inch of my body was running in sweat. I was thinking, ‘What are you doing here? You’ve never sung this publicly before.’ And when I sang, this squeaky voice came out… and I thought I was going to die. Somehow I got through it, but it was not my finest hour.”