It’s worth noting “Byzantine” here does not refer to the ancient empire nor is it being used as you might hear it as an adjective meaning something like “complicated.” It’s referring the Byzantine Rite, i.e., the rituals of Eastern Orthodox Christianity. Of course, our Jewish music wasn’t part of the Byzantine Rite, we were providing an interreligious counterpoint for our hosts, a Greek Orthodox seminary.
It was also my first time singing tenor in a choir. Which is harder than bass, not only to hit the higher pitches, but because my instincts are to sing the root note of the chord and my muscle memory from years ago still makes me want to look at the bottom staff of the system. It was good a challenge for me!