Un ballo in maschera concluded the first season in Seattle Opera’s temporary home at Mercer Arts Arena, with three company regulars – Carol Vaness, Vinson Cole, and Gordon Hawkins – giving their all. (Lori Phillips, Raúl Melo, and Genaro Sulvarán took the respective roles in the Silver series.) Antonello Allemandi was the conductor; Michael Hampe made his company debut as stage director.