I was not aware of this affect. Do you know what causes it? Is some sort of artefact that happens with Mirrorless cameras and LED lighting panels?
It's not going to be an easy fix. I tried using curves, but it was tricking getting the layer mask to align with the darker areas.
The best I could come up with was slow and careful use of the Dodge and Burn tools. Set the strength really low (10%) and use a fully soft brush set to Midtones, and about the size of the dark bands. Then slow brush ou
From Tim Grey's newsletter today: In addition to using the mechanical shutter rather than the electronic shutter when photographing a moving subject, you may want to use the mechanical shutter when photographing under artificial light to avoid potential banding in the photo.
So this does look like a camera issue related to the use of the electronic shutter. Switching to mechanical shutter might not always be an option, but it might be a possible solution in some situations.