A bluegrass jam session broke out in the afternoon heat Sunday at the Paseo Arts Festival, giving festival goers a chance to duck under a tree and listen. Bare feet kept time as one man plucked out a tune on a white banjo. An acoustic bass and guitar rounded out the strings section as another band member scratched on a washboard and one clanged spoons against his thigh. It's a sight that's not unfamiliar at the festival, now in its 34th year. Known for its free-spirited patrons and abundance of Oklahoma-based artists, the three-day event is so popular the nearby neighborhoods burst with parked cars. Free shuttles from Christian Church at NW 36th and Walker were used for the first time to help alleviate traffic congestion. Arsea Hampton, 23, the spoon player for the bluegrass group, recently moved to the state. His friends and fellow band members are traveling from Michigan to California and decided to make a stop in Oklahoma. "It just kind of all came together,” said 19-year-old Adam Amos, another member of the band. "It's a great time.” More than 75 artists, including glass blowers, painters, sculptors, and jewelry makers are selling their wares at the festival. Shop and gallery owners keep their doors open and their businesses air-conditioned. The smell of festival food fills the streets and whets the appetite. "I love the atmosphere and the people,” said Moore resident Nancy Dwyer. "I love to come and support the local artists.” Lynn Cameron, of Moore, said festival goers are friendly, and the artists are willing to talk with visitors and share their knowledge and time. "Most of these folks are from here and I love to support Oklahomans,” Cameron said. The event continues today from 10 a.m. to 6 p.m. Music performances will go until 7 p.m.