They are a rarity in the world of opera, which is subject to so many imponderables, a review observed after Donizetti's “Elisir d'amore” at the Vienna State Opera, “but when they occur, their impact is all the greater: those overwhelming moments that burn themselves into the brain stem, as it were. Juan Diego Flórez singing 'Una furtiva lagrima‘ is such a moment, which at the same time can be seen as proof that an act of the highest artistic sovereignty can change into pure emotional impact. The role of Nemorino”, it continued, “is usually sung either by a tenor whose ability is more about pouring forth his heartbreak with his entrancing timbre or, more rarely, one who sounds less beguiling but possesses better technical tools. Juan Diego Flórez, on the other hand, combines both, and more: in his singing, virtuosity and expression are interdependent and become one. The aria, which after minutes of cheering was performed da capo with even more feeling, was another lesson in delivering a satisfying and fulfilling bel canto.” Juan Diego Flórez in recital at Esterházy Palace - almost anything is possible here in terms of singing, from Schubert Lieder to Jacques Offenbach, from Rossini to Puccini and Massenet, not to mention the popular South American hits, in which he accompanies himself on guitar. A celebration of vocal art.