Stage Capsules

Cosi Fan Tutte: Lorenzo Da Ponte's translated libretto of the Mozart opera is bolstered by good comic acting, especially from tenor Brian Anderson and baritone Michael Todd Simpson. Except for Susanne Mentzer (Despina), whose role demands a lot of funnily voiced character singing, there is never a metallic note from any of Cosi's six principals. Conductor Stewart Robertson and his orchestra were lovely and sensitive throughout, and the ensemble singing — e.g., "Soave Sia il Vento" ("May the Wind Be Gentle") — is so gorgeous that, if the rest of the opera weren't so funny, you'd cry all the way home. — Brandon K. Thorp Through December 8. Ziff Ballet Opera House at the Carnival Center, 1300 Biscayne Blvd., Miami; 800-741-1010, www.fgo.org.

Flock: Members of the audience — along with computers, electronic transmitters, and a quartet of saxophones — take part in creating a musical performance. This Carnival Center commission was designed by composer Jason Freeman "to make new connections between composers, performers, and audiences." The result is a different musical experience every night. — Frank Houston Through December 8. Studio Theater at the Carnival Center, 1300 Biscayne Blvd., Miami; 305-949-6722, www.carnivalcenter.org.

For Better ...: Dubbed by its presenters as "a romantic comedy for the digital age," Eric Coble's play, directed by Ricky J. Martinez, employs a cast of six to probe the question "Do a bride and groom really need to be in the same country to go on a honeymoon?" Karen and Max are getting married — at least, if their jobs will ever let them be in the same city at the same time. The National New Play Network world premiere will debut simultaneously at Curious Theater in Denver and Southern Rep in New Orleans. — Brandon K. Thorp Through December 9. New Theatre, 4120 Laguna St., Coral Gables; 305-443-5909, www.new-theatre.org.

The Steadfast Tin Soldier: Translated by Aleksandr Kheyfets and adapted and directed by Vyatcheslav Dolgachev, Hans Christian Andersen's original Toy Story offers a peek into the playroom after the children have gone to sleep, where a brave toy soldier risks everything for the love of a beautiful ballerina. — Frank Houston Through December 23. Byron Carlyle Theater, 500 71st St., Miami Beach. January 11 through 13. Colony Theater, 1040 Lincoln Rd., Miami Beach; 305-751-9550, www.theplaygroundtheatre.com.