Since 1933, The Los Angeles Sentinel has been a voice for the city’s Black community, who felt ignored by mainstream outlets. Nine decades later, it’s still publishing, but the media landscape is shifting. The Long Beach Opera is having a world premiere of Kate Soper’s new opera “The Romance of the Rose,” but this isn’t your grandma’s idea of opera. Four art festivals are opening in LA bringing together global creators: Frieze in Santa Monica, Felix in Hollywood, LA Art Show in downtown, and SPRING/BREAK in Culver City.