Craig Brown Voice Teacher on Instagram: "The legendary Grace Bumbry in a masterclass, given on July 28, 2010, working with a student named Jeffrey V. (I’ll admit, I couldn’t quite catch his last name when he introduced himself). He’s singing “De’ miei bollenti spiriti” from Verdi’s La Traviata—Alfredo’s aria—working toward that soaring high note. One of the funniest moments is when Grace refers to Franco Corelli as “what’s his name”—about one of the greatest tenors of all time. Pure gold. She al