A classic chamber group, The Ahn Trio isn't afraid to have fun or be funny. It's most recent album was amusingly title Lullaby for My Favorite Insomniac, and it kicks off Wolf Trap's annual Discovery Series in a celebration of Founder's Day with a new Wolf Trap co-commission, "BraziliAHN and Other Landscapes." Friday, Oct. 14, at 8 p.m. The Barns at Wolf Trap, 1645 Trap Road, Vienna. Tickets are $40. Call 703-255-1900 or visit wolftrap.org.