SONGS FOR LOVERS The 12-voice ensemble Manhattan Voices presents a Valentine’s Day concert of choral works to, by, or for people in love. The program includes waltzes by Brahms and musical settings of the Song of Songs. Tonight, 7:30 p.m., St. Bartholomew’s Church, Park Avenue at 51st Street, 212-378-0248, $20 general, $15 seniors and students.

VAET’S BEST The Vox Vocal Ensemble performs a program of works by Flemish composer Jacobus Vaet (c. 1529-67).The centerpiece of the concert is Vaet’s Mass based on his friend Clemens non Papa’s motet “Ego flos campi.” George Steel conducts the performance, which is presented by Columbia University’s Miller Theatre. Saturday, 8 p.m., Church of St. Paul the Apostle, Columbus Avenue at 60th Street, 212-854-7799, $35.

DA BRAT The Moscow-based Helikon Opera Company performs Johann Strauss’s operetta “Die Fledermaus” (“The Brat”). Set in 19th-century Vienna, it tells the lighthearted story of one man’s revenge for another’s practical joke. The performance is in German with English supertitles. Sunday, 3 p.m., Queensborough Performing Arts Center, 222-05 56th Ave. at Springfield Boulevard, Bayside, Queens, 718-631-6311, $39 and $42.

HANDEL, FIRST AND LAST The early music ensembles Fuma Sacra and Brandywine Baroque present an all-Handel program conducted by Andrew Magill. The concert includes “Dixit Dominus,” Handel’s earliest choral work, and “The Choice of Hercules,” one of his last. Sopranos Julianne Baird and Laura Heimes are guest soloists. Sunday, 3 p.m., Holy Trinity Roman Catholic Church, 213 W. 82nd St., between Amsterdam Avenue and Broadway, 212-787-0634, $25 general, $10 seniors and students.

To submit an event for consideration for the Calendar, please wire the particulars to calendar@nysun.com, placing the date of the event in the subject line.