(Photo credit: Festival d’Aix-en-Provence © Vincent Beaume) In an arbored patio, Pretty Yende, ethereally sings the final terzett of the last Petrarch sonnet by Liszt, “ed era il cielo a l’armonia sí intento,” “che non se vedea in ramo mover foglia,” “tanta dolcezza avea pien l’aere e ’l vento.” (“and heaven so intent upon the harmony, no leaf was seen {…}