Brewer will play the role of the Mother Abbess with Elizabeth Futral as Baroness Elsa Schraeder. Complete casting will be announced at a later date. 

In order to fulfill her commitment to the Lyric Opera, Brewer had to withdraw from a scheduled appearance with the St. Louis Symphony Orchestra, according to the St. Louis Post-Dispatch. "My agent multi-booked me," said Brewer in an interview with the St. Louis Post-Dispatch. "It makes me look like a big jerk."

The St. Louis Post-Dispatch reports that Brewer is no longer represented by her former agent Alison Pybus, who is now vice president of the vocal division at IMG Artists.

"I have a really long-term relationship with the St. Louis Symphony, and that's very important to me," Brewer told the St. Louis Post-Dispatch. "I sing there every year. (Music director) David (Robertson) lets me bring sixth graders to closed rehearsals. It's a big, big deal for me. I asked [Pybus] to talk to people and find a way to make it work, but she just let the ball drop."

Grammy winner Brewer, who was named one of the top 20 sopranos of the 20th century by BBC Music Magazine, made her Lyric debut as the Dyer's Wife in Die Frau ohne Schatten. She has performed with the Boston Symphony Orchestra and Cleveland Orchestra as well as at the Edinburgh Festival, San Francisco Opera and the Los Angeles Philharmonic. Brewer created the role of Sister Aloysius in the world premiere of Douglas Cuomo's opera Doubt at the Minnesota Opera in January.

The creative team of The Sound of Music also includes Michael Yeargan (set designer), Alejo Vietti (costume designer), Denis Jones (choreographer) and Michael Black (chorus master).

More information about the Lyric Opera's production of The Sound of Music can be found by visiting lyricopera.org.