Did you notice that every element of the concert relates to the story of the DLC and Song Bird?

The opening with a singing bird = Song Bird then Space Force One attacked by the Barghest wolves.

Then comes the explosive chaos that allows So Mi to escape who is transcended by the Black Wall.

But she is trapped in the AI's Web, of which mechanical spiders are the representatives. And deliverance comes for Song So Mi when V joins her…