Bands Seen But Unknown Date Between 1993 and 1997

Oh yes my dark and dangerous student days. I have recollections of seeing the following but have no evidence and can't find any information on the internet. these include

The Levellers
Back to the Planet
Zion Train
The Orb
System 7
Primal Scream supported by Stereolab in 1994
Eat Static
Banca De Gaia