Polygon.FM - Main

When you tune into Polygon.FM - Main live, expect zero hand-holding. The station opens with a wall of distorted guitars and doesn't let up. It's an alternative radio station from an unknown origin, but its sound is unmistakably heavy. Russian-language announcements break up the tracks, though the metal needs no translation. The station's identity is shrouded: no city listed, just the name. That anonymity adds to the mystique. It could be broadcasting from a basement in Moscow or a studio in Siberia. What's certain is the dedication to heavy music. Playlists lean toward underground death metal,…