Season tickets for the 50th anniversary season of Orchestra Seattle and the Seattle Chamber Singers are now available. Enjoy familiar masterworks, including Beethoven’s “Eroica” Symphony, Handel’s Messiah and Bach’s St. Matthew Passion. Experience world premieres by Carlos Garcia, Huntley Beyer and Quinn Mason. And help celebrate half a century of magnificent music-making in Seattle. Those under 30 can subscribe for just $60 for the entire season.