The Berkshire Jazz Orchestra will be presenting an outdoor concert at Richter House in Danbury on Sunday. The Stanley Richter Association for the Arts event is at 3pm. The 17 piece ensemble maintains the tradition of a true jazz orchestra featuring many creative soloists from within each section. Admission is free. As part of this outdoor presentation, the Richter Association for the Arts Board of Directors asks attendees to wear hats for their first Hat Contest. Richter Board members will admire, and judge, hats worn by the guests.