I've seen aryan replay with that they're "in the queue"

I'm rather new, can someone explain to me what this means?

It probably means that it's on a list of soundtracks to be added to Galbadia Hotel, but she hasn't had time to upload it yet. So, you'll probably have to wait until she finds the time to upload the soundtrack(s) you're looking to download.

wait, Galbadia Hotel? >_>

Galbadia Hotel is the place where people get the game music downloads? This place is the forum side of Galbadia Hotel, but for some reason it's named differently.