“ElektroFolk” powers on with figures rooted in ancient Latvian folklore, interweaving themes tapped from other ethnic streams into a progressive rock’n’roll world music dream, played with heart and chops to be piped to you professionally in a perfect live-sound package. Masters of ceremony help set the scenes and tell the stories behind the songs during musical pause for most any audience. The band expands every show to include remarks reaped from listeners recorded beforehand.