They may. I could see someone asking about it.  And they might. Poor Clary is always hearing things too. Ha ha 

Alex: *is pulled*

He understands most of it, but because he is originally from hell and nothing there is exactly natural, he doesn't fully comprehend it. He's used to things being fucked up and twisted, but natural things aren't so it's just new to him... even if he's lived on earth for a while.