In single soft flourish of Rossini ‘Stabat Mater,’ Muti effect tells in Chicago Symphony, Chorus

Review: If there was a moment during the season-ending concert that summed up the singular achievement of the Chicago Symphony Orchestra and Chorus under the long-term influence of Riccardo Muti, it came near the end of Rossini’s “Stabat Mater,” a Catholic hymn to Mary that pulls the listeners into the mother’s grief at the foot of the cross and offers transcendence. The three-line prayer “Quando corpus morietur” (“When my body dies, let me live in Paradise, too”) is so very human and humble that the listener might not notice how treacherous it is to sing. The Chicago Symphony Chorus imbued it with a powerful emotion that filled the hall, yet with sound so soft it barely hung on a thread.