Coming up on tonight’s World Music Show (9/26) , I’m in conversation with local fiddler and history teacher Mike Ferry, whose new album “From Ulster to Appalachia,” traces how Scotch-Irish music made its way into Americana music. Plus, I’ll feature the usual smattering of world music, including tracks from Piers Faccini, Leni Stern, Moken, Angelica Garcia and more!