Claim: Renato Capecchi, who taught at the Manhattan School of Music for many years, but never recorded any performances.
Evidence: Recordings are available of him as Figaro (Mozart and Rossini), Dandini, Riccardo, Rigoletto, Belfiore, Melitone, Ford, Jago, Scarpia, and, in an Italian translation-performance of Die Meistersinger von Nürnberg, Beckmesser.