Zhen Liu, up until now, had yet to be on the receiving end of any aggressive musical aether arts.
He knew from the times he was exposed to healing musical aether arts that whatever effect he was being subjected to would be thoroughly amplified; he just didn't know by how much.
As such, when Lyona rolled up and released the vocal equivalent of a nuke in this big, echoing cave, it took Zhen Liu a touch more effort than usual to suppress the pain he was feeling ringing in his ears.
'IF I DIDN'T HAVE TINNITUS BEFORE, I DEFINITELY HAVE IT NOW!' Zhen Liu concluded as he covered his ears. 'But at least I don't have it as bad as these assholes.'
From what Zhen Liu could remember from his studies, the attack he and Dante were just subjected to was an Ethereal-grade aether art known as [Bellow of the Liger King].
This technique mimicked and layered the roar of lions and tigers into a discordant chorus of pain.