About halfway through the second act of Verdi's La traviata at the opera's second Met performance of the season, soprano Sonya Yoncheva went from being a really good Violetta to being a great Violetta. Her first act had been quite good – playing in Willy Decker's brilliant, unsentimental, cold production first seen at the Met in 2010. The partygoers are a vile bunch, both women and men dressed as men in black suits, and Yoncheva entered and acted as if this was just another in a chain of awful parties, a re-run of her present life. Her singing was loud but brilliant, the voice rock solid (save for a smudge run or two in "Sempre libera"; her coloratura is proficent but not quite her strength), and her blasé attitide a fine foil for tenor Michael Fabiano's almost disturbingly passionate Alfredo.
But in the second act, she was carefree (Decker's direction has the couple playing hide-and-seek during the usually alone "De’ miei bollenti spiriti") until the entrance of the elder Germont, here played by the huge-voiced, commanding Cuban-American baritone Nelson Martinez, who had stepped in for an ailing Thomas Hampson. Suddently Yoncheva's Violetta knew, unmistakenly, that the recently discovered joy in her life was ebbing along with her health. She began shading her phrases and singing at less than full voice. Her posture changed and she became a tragic figure. Her “Amami, Alfredo” perhaps missed some of the darkness that other voices can bring to it, but it came as a cry of desperation and moved the audience to applause. Her final act, performed on an all-but empty stage lit in a sickly, pale blue, found her attempting more white-toned, pianissimo singing – not quite fully formed – but by then, individual notes no longer mattered. This was a superb portrayal.