Chorus Austin presents “Esther,” a recently rediscovered oratorio by Cristiano Giuseppe Lidarti. Completed in 1774, this long-hidden masterwork tells the story of Queen Esther’s rescue of the Jewish people. The 180 voices of Chorus Austin’s Symphonic Chorus, under the baton of Chorus Austin Artistic Director Ryan Heller, will perform this full-length oratorio in Hebrew with orchestra and soloist Meredith Ruduski, soprano, as Esther. Other soloists are Janeene Williams, soprano, as the Israelite Woman; Steven Brennfleck, tenor, as Ahasveros; Albert Garcia, tenor, as Mordechai; Gil Zilkha, bass, as Haman; and Aaron Coronado, tenor, Harbona. Performances are at 7:30 p.m. Saturday, April 22, and 4 p.m. Sunday, April 23, at St. Matthew’s Episcopal Church, 8134 Mesa Dr. Admission is $25 general, $20 seniors and $15 for students and active military. Tickets may be purchased online at www.chorusaustin.org, by contacting the business office at (512) 719-3300 or at the door the day of the performance.