"This location has ideal acoustics." One supposes this person already knows that, given the way they've set up shop here. And that they're refusing to yield. "Playing guitar anywhere but this exact spot wouldn't yield the highest-quality experience."

Yes, this person must not know exactly with whom they are dealing. Hibiki shall gladly enlighten them.

She steps onto the bridge fully, unslinging the guitar from around her back and just sort of....setting up around him. He'll be gone soon, anyway. This is her prerogative. "As a god of the Central District and a genius, the most exclusive and best places are all rightfully mine."

That should do it. No one can refute that logic.