Do you like heavy metal music?
Yes, but it is not my most favorite.
It started mostly in 1968 with Led Zeppelin, Black Sabbath, and Deep Purple.
I am more familiar with Led Zeppelin and I really like "stairway to heaven" song.
Yes and their sound is like blues, psychedelia, and folk music all in one.
Interesting, you mean the heavy metal is combination of these three genres?
No Led Zeppelin has those three genres. Heavy metal has a lot of genres such as thrash metal from bands like Metallica, Megadeth and Slayer.
I got it, and maybe  thats why their music sounds more interesting to me, because I really like blues music.
Blues is cool. It came from African Americans in the Deep South.
Yes you are right. I especially like it when it combines with rock or metal music.