Los Angeles is not, historically, an opera city. These are the L.A. Opera production of Puccini’s “Turandot” designed by David Hockney, a staging by Pacific Opera Project of Puccini’s “Madama Butterfly” and the West Coast premiere of Kate Soper’s one-woman experimental “Ipsa Dixit” at Long Beach Opera. Soprano Anna Schubert and violinist Mona Tian in the Long Beach Opera production …