It's the season for giving, and you can get in the Christmas spirit this week with musical benefits all over town. Today at 2, a group of Guyanese Americans will present "A Yuletide Festival of Music." The $12 ticket fee will go toward medical aid, food and emergency supplies to Guyana. The concert will be held at Howard University's Cramton Auditorium. For information call 723-5913.

Wolf Trap's 19th Annual Christmas Carol Sing-Along starts at 4 this afternoon. The U.S. Marine Band will kick off the concert, and audience members can join in songs led by more than 25 area choirs and choral groups. Each participant is also asked to bring a bell and candle -- the program traditionally ends with a rendering of "Silent Night" and a candelight procession from the Filene Center. Admission is free but singers are asked to bring two nonperishable food items to be donated to WJLA-TV's "Neediest Kids" program. For more information call 255-1902.

"Caroling for Charity," around a big Christmas tree outside of Cafe Petitto on Connecticut Avenue, may be just the thing to bring on a holiday mood. It's a brisk outdoor option from 5:30 to 8:30 p.m. Tuesday and Wednesday night. On Tuesday donations will be taken for St. Anne's Infant and Maternity Home, and on Wednesday contributions will go to Christmas for the Homeless, an organization formed by restaurants. Carolers will be treated to an Italian dinner after three hours of singing. To sign up as a caroler, call 667-5350. Space is limited.