I would not be opposed to any of them honestly

But in that case Hawkwind, Cream, perhaps even Vanilla Fudge could possibly feature

It's hard to say where ought to draw the line, we have King Crimson, The Doors, The Who, and Jethro Tull for instance all understandbly have an influence on hard or progressive rock.

We need add Jeff Healy band

Also I do try to add information about festivals or tours I'm attending. I know it's a lot of work but if more people could do the same, it would be great.

there is already the "invisible status"

We should build Abattoir a statue