Here's a few concerts I've attended over the years (in no particular order)
Hawkwind (about 20 times!) Genesis, Motorhead, Richie Blackmore's Rainbow, Robert Plant,Supertramp (twice), Curved Air, Steve Hillage, Steve Hacket,Status Quo (5times) The Strawbs, Space Ritual, the Moody Blues, Lamb, Camel (twice) Tim Blake, Tangerine Dream, Mamma's Boys, Angelwitch,Clannad, Rick Wakeman (4times) and many many more :)
Snowflakes are dancing, oxygen Still got em on vinyl somewhere.

If it ain't free, I can't afford it.