Gave some songs a spin. To me, the plodding description suits Avatarium the best, because of the word "parts". Forgotten Tales songs plods troughout the entire song (in terms of riffing). And to my ears, the Beatiful Sin song doesn't lack an edge or heavyness, though I can hear the male vocals thing. However, I also think several other songs have parts where the singer almost sounds like a male, to some extent.