You have a few more performances this month before the Washington National Opera season ends. We have reviewed both productions for you at DCist and I recommend them both. On Monday (May 22, 7 p.m.) and Saturday (May 27, 7 p.m.) are the final two performances of Mozart's La Clemenza di Tito, an opera that is not all that well known but that has some great music -- Mozart at the height of his compositional powers. On Wednesday (May 24, 7:30 p.m.) and Friday (May 26, 7:30 p.m.) you will have your last two chances to hear Juan Diego Flórez and a first-rate cast in Rossini's L'Italiana in Algeri. If you or a friend think you might like to see what opera is all about, this is the one to see. There are more reduced-price tickets ($25 and $35) available for members of Generation O: students and young professionals, ages 18 to 35, are eligible to join. There are limited seats for Clemenza on May 22 and 27 and L'Italiana on May 26. Use promotion code 4935 when you order.

MORE OPERA:
>> If you have seen both of those productions and you are looking for something a little more challenging, there is a single performance this Monday (May 22, 7:30 p.m.) of Benjamin Britten's creepy opera The Turn of the Screw. The libretto was adapted from the truly disturbing novella by Henry James. It concerns Flora and Miles, two children tormented by the terrifying ghosts of an evil valet and his mistress, who haunt the house where the children are staying. The children's governess is the only other person who can see the ghosts, but everyone dismisses her as a sexually repressed hysteric. The insidious malice that Britten, one of the greatest operatic composers of the 20th century, summoned in his score, for chamber orchestra, is not to be believed. This fully staged production will feature singers Anne Dreyer and Jeffrey Lentz, conducted by Lorin Maazel in the Kennedy Center's Terrace Theater. The event is a coproduction of the Fortas Chamber Music Series and Maazel's Chateauville Foundation.

YOUNG VIOLINIST:
>> For obvious reasons, I tend to avoid mentioning concerts in Baltimore. However, the National Symphony Orchestra is not playing this week, so if you want to hear orchestral music, you will have to go to Baltimore and "Get In On It." On Thursday (May 25, 8 p.m.) and Friday (May 26, 8 p.m.), the Baltimore Symphony Orchestra will give a concert with the promising young violinist Julia Fischer playing Beethoven's glorious violin concerto. Supposedly, departing conductor Yuri Temirkanov will return from Russia to make good on the rest of his contract and also lead Weber's Euryanthe Overture and Shostakovich's Symphony No. 1 at Meyerhoff Symphony Hall. On Saturday (May 27, 11 a.m.) the BSO will give this program, minus the Shostakovich (which I would not want to miss), as a Casual Concert.

THE FREE KIND:
>> Next weekend is the Memorial Day holiday, the sure sign that concerts will decline in frequency as summer arrives. For now, you have some good free concerts, beginning on Tuesday (May 23, 12:10 p.m.) with the all-male a cappella early music group with the silly name, the Suspicious Cheese Lords, at the Church of the Epiphany (1317 G St. NW).

>> At the National Gallery of Art on Wednesday (May 24, 12:10 p.m.) the early music instrumental group Piffaro will give a free concert of 16th- and 17th-century music for wind instruments in the West Building Lecture Hall. There will be no Sunday concert because of the holiday. The Phillips Collection will host its Sunday concert on Sunday (May 28, 5 p.m.), a recital by pianist Yuliya Gorenman.

AT THE FRENCH EMBASSY:
>> The Embassy of France, La Maison Française (4101 Reservoir Rd. NW) is hosting two interesting concerts this week. On Monday (May 22, 7:30 p.m.) François Lazarevitch and the Musicians of Saint-Julien will perform a program of French Baroque music. Lazarevitch plays not only period versions of the transverse flute and recorder but also the Baroque musette, that is, the ancestor of the bagpipes. On Wednesday (May 24, 7:30 p.m.) cellist Renaud Déjardin and pianist Márta Godény will play sonatas by Mozart, Debussy, and Martinů, as well as transcriptions of Schumann songs. Tickets for either concert are $15, but you must make a reservation.