I had heard of the band Grateful Dead but never followed them.
I have heard of them too but they were before my time but heard their followers were called Dead Heads right.
Yes that's what they call themselves, they enjoy the experimental music that's like psychedelic.
Yes, it was during the Janis Joplin, time frame the free love period I think
Rock music has not really changed it mostly centers on the electric guitar and that's definitely that time frame.
Yes that is true. I like Old Rock but not the Head banging rock.
That type of music would be considered grunge rock that surfaced in the 1990's.