The opening gig at Rock City was supposed to be the Human League but they/it got cancelled, tickets were then honoured for the replacement which was the Kinks, I was there.
Also saw U2, Defunkt, Gang of Four and many others.
Also used to frequent The Boat and The Union on Trent Bridge, can't remember which was which, saw Magnum, Scorpions, Def Leppard and a local band which played there a lot called Limelight (i think).
Another rock venue circa that period was on St James' Street could have been at the back of the Imperial.
And let's not forget Brendan Kidulis at The Old Malte Crosse (sic)