Midwit memes

NOOOO MANY BANDS WERE PLAYING HARD ROCK BY 1970 AND OTHER BANDS WERE PLAYING HEAVY BLUES AND THERE WERE SEVERAL BANDS WHO RELEASED PRIVATELY PRESSED LPS THAT SOLD 500 COPIES THAT WERE DEFINITELY HEAVY METAL; BLACK SABBATH INVENTED HEAVY METAL; BLACK SABBATH INVENTED HEAVY METAL