Odd one out.........

Some obvious, some VERY not obvious.

Which is the odd one out in each of these lists and WHY?

1) XANG, Mystery, Frank Zappa, Brand X.
2) UK, Curved Air, Jethro Tull, Yes.
3) Steve Hillage, Rod Argent, Moody Blues, Strawbs.
4) East of Eden, Genesis, PFM, Curved Air.
5) Genesis, Kaipa, Jethro Tull, Fish.
6) JamForte, VAXman, KeithieW, Teermin8r.
7) A trick of the tail, Wind and wuthering, And then there were three, duke.
8) Caravan, The Tangent, Camel, Hatfield and the North.
9) King Crimson, Yes, Mike Oldfield, Vangelis.
10) UK, France, Germany, Netherlands.

You smart devils may find other answers but I'm looking for the ones that are in my pea brained head. OK?

Happy hunting.