It’s customary to program Beethoven’s Symphony No. 9 as a standalone, but to insist it be played that way is pure poppycock. Consider the premiere, which was originally planned for Berlin but got shifted to Vienna by overwhelming popular demand. With the deaf composer in attendance, the overture The Consecration of the House was played as a curtain-raiser, followed by three excerpts from the tremendous Missa Solemnis, which had premiered in far-off St. Petersburg the month before. In an adventurous spirit, the conductor Douglas Boyd and the New World Symphony (“America’s Orchestral Academy,” showcasing distinguished recent graduates of top American schools) pair the Beethoven with Leoš Janáček’s brass-happy, blazing Sinfonietta and the Bible’s Psalm 23 in the glowing setting by Rhiannon Giddens and Michael Abels from their Pulitzer Prize-winning opera Omar. —Matthew Gurewitsch