It’s a peculiar time for what is loosely codified and described as “psychedelic guitar music.” On one extreme, acoustic-framed artists attempt to emulate and propitiate the ‘60s excursions of unplugged pioneers like John Fahey, the Incredible String Band, Robbie Basho et al. Meanwhile, the electric hardliners are drinking from the same greasy and battered goblet of bands as disparate as …