He, Pavarotti, Caruso and Kaufmann sing both verses, of all the tenors on you tube. And they are all of equal marvelously grand interpretation. Each sings the heartbreaking second verse, "how I suffer..."that grace and beauty make singing this piece just an inspiring gut act
I am a tenor, and I admire that he takes such risks......he suspends the voice softly at times using great emotion, and then opens up forte. He demonstrates great courage and heart, and musicality. His sound is also unique......he has his own singular technique.....his own way. No one will sing this way again.