(Credit: http://www.avantartmagazin.com/) Famed Serbian mezzo-soprano Biserka Cvejić has died at the age of 97. Cvejić performed over 70 roles during throughout her renowned career, including Bizet’s “Carmen,” which became one of her calling cards. Other major roles included Eboli in Verdi’s “Don Carlos,” Amneris in “Aida,” Ulrica in “Un Ballo in Maschera,” Azucena in “Il Trovatore,” Charlotte in Massenet’s “Werther,” {…}