By Carolyn Brown
For the Valley Advocate The roots music festival Back Porch Festival will return for its 12th year from Friday, March 27, to Sunday, March 29, with more than 60 performers at 12 venues throughout downtown Northampton. Two of those venues — Haze and the Flex Space at 33 Hawley — are new this year. “I think it’s very exciting that Haze is getting ushered into the town and being included with all these other incredible venues,” sai…