This year’s edition of the opera and music-theater program features Sarah Kirkland Snider’s ‘Hildegard,’ about the 12th-century abbess; Susan Zeeman Rogers’s ‘Precipice,’ a story of nature and ...

Ms. Graves, a mezzo-soprano, is an opera singer. After more than 40 years of singing in opera houses around the world, I have decided to retire from the stage. My last performance will be as Maria in ...

• The Metropolitan Opera performs Gabriela Lena Frank and Nilo Cruz's opera inspired by Frida Kahlo and Diego Rivera.