[LeifH12345]

Forget about normalizing. If you don’t like the gaps, do a cross fade to hide the transition. But if you do that, you’re further damaging the continuity of the concert which, I personally, am not a big fan of doing. Better to find a patch.
You don’t have to hold anything above your head, just wear it on your body or hat.

Try experimenting with a faux stereo plug-in like Sheppi or Wider. They’re both free.