Ambassador Kosh gives Sheridan a lesson.... All rights reserved , Babylon 5 belongs to WBTV and its respective owners. I have no intention to monetize this video in any way. Just sharing this amazing tv series with everyone. :)
I would bet 10 to 1 that the beings under the cloaks were the pak'ma'ra. It's mentioned somewhere else in the series that the pak'ma'ra sing and it sounds beautiful.