Seattle Opera has announced the lineup for its 60th anniversary concert “Windows from the Past, Doors to the Future.” The event, scheduled for one night only on May 11, 2023 at McCaw Hall, will feature Greer Grimsley as both co-host and singer. He is joined by Ginger Costa-Jackson, Mary Elizabeth Williams, Sarah Coburn, John Moore, Duke Kim, Amitai Pati, and {…}