It's hard to overstate the influence of the long-running Norwegian band Satyricon on the world's extreme heavy metal scene. Its tenacity alone is amazing -- the core of the band, frontman/songwriter Satyr and drummer Frost, has been playing together continuously since 1992. On albums and tours, an all-star cast of supporting musicians has come and gone, but it's in the back-and-forth between these two that lives the band's arresting musical alchemy. Entire subgenres have sprung from single Satyr