Lots of folks have volunteered to help out at this year’s American Folk Festival in Bangor, but more are needed and welcome to join in.Organizers say they have 870 people registered to volunteer so far, which could top last year’s number. But there are still about 30 shifts open for people who want to get involved.They’re looking for folks to work the stages, in the Bucket Brigade and as safety escorts. There are some other needs to fill too.Assistant Festival Director Debbi Melinkas says volunteers are key to putting on a good festival. While many people volunteer every year, new faces are welcome, too.”They’ll get a job description and they’ll get a chance to ask me or their area leaders questions. Shifts, on average, are about three and a half hours. They get an exclusive T-shirt, and we have a private party Saturday night for volunteers, artists and staff,” Melinkas says.Most volunteer jobs have a brief training session. You need to be 16 or older to volunteer for all positions except the Bucket Brigade.Melinkas says you have until this Friday, August 21st to register. You can do that online or you can call her, at 974-3216.