10 metal subgenres

Loudwire has an educational article about 10 less known subgenres of metal. Post-metal established a name for itself with bands like Neurosis or Isis, but then there is porno grind - a type of metal that features ridiculously sexual band names and song titles such as Gut’s 'Let Me Be Your Sperm Factory' from 'The Cumback' (and it seems everybody is having fun when porno grind in on, watch the video below). The subject matter and imagery are pornographic, but good luck understanding the low, garbling vocals.