(Photo credit: Destiny Grace) Opera Parallèle has announced the details of its annual benefit event, “Boum!” taking place on March 14. Mezzo-soprano, activist, and current San Francisco Opera Adler Fellow Nikola Printz previews the upcoming world premiere of “Birds and Balls,” singing the lead role of Billie Jean King. Printz is accompanied by pianist Keisuke Nakagoshi. This year Opera Parallèle {…}