(Credit: Teatro Cervantes/Bayerische Staatsoper) This weekend, three new productions open with superb casts. Meanwhile one of the biggest stars in opera makes a major debut while a production will continue in very intriguing circumstances. Norma – Staatsoper Hamburg, Germany Marina Rebeka headlines a new production of “Norma” by Yona Kim. Rebeka takes on her signature role alongside Marcelo Puente, Liang {…}