We are well into the season of seasonal concerts at this point. If you are looking for a performance of Handel’s Messiah or a Christmas or Holiday Concert, we’ve dealt with that. Here is what else is happening this week in classical music.

NOT CHRISTMAS:
>> Ironically, possibly the best performance this week also happens to be free, the latest concert in the excellent series at the Library of Congress. On Friday (December 15, 8 p.m.), superstar violinist Joshua Bell will play an all-Schumann program, in various combinations with Paul Neubauer (viola), Steven Isserlis (cello), and Jeremy Denk (pianist and author of a blog). A pre-concert presentation, also free, will be offered at 6:15 p.m. It may be too late to reserve a seat through Ticketmaster, but if you show up early and get a number, you are usually able to take an unclaimed ticket. Go to the First St. entrance of the Jefferson Building.

>> Pianist André Watts will play with the National Symphony Orchestra this week, in the second piano concerto by Saint-Saëns. The program also features Ginastera’s Concerto for Strings and an old favorite, Beethoven’s Fifth Symphony. As usual, you can hear this concert Thursday (December 14, 7 p.m.), Friday (December 15, 7 p.m.), or Saturday (December 16, 8 p.m.) in the Kennedy Center Concert Hall. Tickets: $20 to $80.

>> The local group Opera Bel Cantanti is offering several performances of Mozart’s evergreen opera, The Marriage of Figaro, with multiple casts. I have heard some of the singers and been generally impressed. The run opens this Friday and Saturday (December 15 and 16, 7:30 p.m.), at the Embassy of Austria (3524 International Ct. NW). Six other performances are scheduled for various dates through January 6, at several different venues. As a less expensive opera option, the price is right at $35 (students, $25).