Musical Mob

I was somewhere out of the ordinary, somewhere foreign (which makes sense since I had this dream while I was in Chile). I was the number two person in charge of some kind of event. A huge event that drew thousands and thousands of people. And I was basically alone. Like they say, it's lonely at the top. Well, it became evident that the crowd was getting restless. Worse than that, they were starting to get riled up. They were rabble-rousing, if you will. Whoever I was working for came to me, frantically, telling me we had to figure out a way to keep the crowd happy or else they would start to be violent and destructive. Apparently my superior had no ideas because he made it evident that the responsibility fell on me.
My solution? Get the crowd singing. I didn't even have to think about it. I was standing on the side of a mountain, and the crowd was gathered in the valley, and I started directing them in a song.
And the weird thing is, the crowd was into the song. They joined right in, singing in perfect harmony, knowing all the words without even discussing which song we were going to sing. All of a sudden 3,000 people were singing, and it was majestic.
The REALLY weird thing is they were singing......."When Moses was in Egypt land/Let my people go!" They were singing it slowly and with as much melancholy as they could muster. No one was off key, and all of the chord was being sung. And, as if we had rehearsed for months, everyone stopped singing, except for the basses, when we got to "LET MY PEOPLE GO!" It was low and rumbly as a thousand men sang in the valley.
And the crowd was calm and my boss was happy.
And then I woke up. Well, more realistically, then I stopped REM and entered another sleep cycle.