Opera has never sounded so good. Orchestral excerpts from Wagner’s The Ring, among them “Descent to Nibelheim” and “Wotan’s Farewell” combine with the best arias and choruses of Verdi-including the “Celeste Aïda” and the “Gypsy Chorus”-in a pairing of monumental composers, both born in the same year. Our guest soprano and guest tenor play their parts to the hilt, along with the Symphony Honor Choir, in a hall that showcases the power of the human voice.