Boulder’s first historic district hosts the 7th Annual Mapleton Hill PorchFest, a FREE musical walkabout on Sunday, September 16. 11:30 a.m. to 3:15 p.m. Some 20 bands and ensembles set up on porches and play a variety of music. Do you like bluegrass? Jazz? Classical? Blues? Folk? Stroll the beautiful treelined streets and stop to listen to music, then wander on to the next porch from which enticing sounds emanate. Bring a folding chair — or not. Kids and leashed dogs are welcome. Find music on porches from Pine St. to Concord St. (north-south) and from 4th to 9th St. (east-west). Click here for a map, addresses and schedule.