Here’s a look at the operas to see this weekend around Europe. The Queen of Spades – Salzburg Festival, Austria  The highly anticipated new production of Tchaikovsky’s masterwork opens with Brandon Jovanovich singing the lead and Evgenia Muraveva as Liza. Oksana Volkova, Hanna Schwarz, Igor Golovatenko, and Vladislav Sulimsky also star in Hans Neuenfels’ production. Mariss Jansons conducts. Carmen – Bregenz Festival, Austria  Bizet’s {…}