Washington National Opera has announced its 2019-20 season! The lineup consists of six main-stage operas: two new productions, three productions new to Washington, and the D.C. premiere of a Zambello-commissioned work by composer Jeanine Tesori and librettist Tazewell Thompson.  Additionally, the American Opera Initiative will return for “Three 20-Minute Operas,” which will showcase the work of three new composer-librettist teams during {…}