I am from a family of avid mushroom collectors and seldom collect without being together with either my father or brother (that's @evilhippie) who both are very knowledgeable and carefull.
The drawing was made with brush and paper and I kind of just let it happen. When you cannot ctrl-z you sometimes arrive at other results than the computer would have given. I think it is also the same with music. The live has another feel to it.
Funnily enough I discovered these in our garden today. I was not going to rush to try them.
Very hard to tell when you can not examine it directly, but it could be the Liberty Cap which is hallucinogenic :) In Danish it is called (translated): Pointy Naked Hat !?
Here's a Danish acid rock orchestra named after this mushroom.
I'll not risk trying them. Cool music even if I don't understand what he's singing.
It is never a good idea to eat mushrooms you do not know, but music should be relatively safe.