Gustav Holst, The Mars Movement (1916)

Not nearly often enough do the awesome themes of metal and science (fiction) combine. (They do a little here, here and here.) But they really do here:


Some people will argue that the Mars Movement from Holst's The Planets is not metal. But there is a clear counterargument. Which is that those people are weak and stupid, and this is why we have wolves and other large predators.