[quote=@ChadsWorth The Third]
<Snipped quote by Endymion>

he is very perceptive with sounds. He uses them to translate them into songs, which translate into physical illusions.
[/quote]

He should be able to perceive Arthur then. As long as he doesn't try to look at him. XD When he has that mask on, its like anyone who looks at him has a blind spot wherever he stands. But if he's good with sounds, that would work.