The sub-genres of heavy metal and rock music

Godfrey's Blog-O-Wisdom
With the time passing music has undergone a lot of changes it is no more just the classical,pop,jazz,rock,heavy metal......... There is lot of sub-categories added to each of it and im interested in listing the sub-generes of the Rock and Heavy-metal music.
Rock:alternative rock, arena rock,blues rock,boogie rock, garage rock,glam rock,grunge rock,hard rock, jazz rock,pop rock,punk rock,rap-rock,retro rock,rock'n'roll, roots rock, soft rock
Heavy metal:alternative metal, black metal, British metal, Christian metal, death metal, doom metal, doom core metal, Goth metal, grind metal, grind-core metal, heavy metal, hair metal, industrial metal, neo-classical metal, progressive metal, pop-metal, punk metal, rap-metal, stoner metal, Scandinavian metal, speed metal, symphonic black metal, sludge metal, power metal, thrash metal and the last and most violent of all demonic metal!