She rendered the gorgeous yet not oversweet melodies beautifully, but there was much more than mere vocal allure: superb diction and a compelling stage manner that would have communicated much of the meaning even if the words had not registered so clearly.

The program highlighted the impressive gifts of the soprano Julia Bullock — a mesmerizing performer who combines an alluring voice with a natural theatricality. During recitals, singers often stand uneasily onstage, their movements appearing calculated. But Ms. Bullock imbued every song with myriad physical nuances that seemed natural and spontaneous; subtly unclenching a fist, arching her eyebrows,...