Somewhere on the musical map, where the twang of Classic Country meets the grit of Southern Soul, Hank Wonder marks a detour down a sonic stretch of unpaved road. The Boston-based trio of Annie Bartlett (fiddle and viola), Darren Buck (vocals), and Michael Loria (guitar) first came together in 2013, and have since crafted their very own soulful blend of Americana: equal parts down home and gussied up.