“Mezzo-soprano Isabel Leonard did double duty, coming in to sing the finale of the Mahler in gilt-edged phrases after concluding the first half of the concert with a crisp, warmly expressive account of Mozart’s early motet “Exsultate, jubilate.”

Leonard imparted a wealth of unusual new colorations to both works, injecting just a tinge of earthiness into Mahler’s celestial landscape and shaping the coloratura of the Mozart as if it were a vivacious Rossinian showpiece.”

SFGate