Crazy music in Kaladim and Freeport?

[Chrushev]

Has anyone else had this issue? ive notized this in Kaladim and Freeport..

here is an example.. sounds exactly the same.. its like multiple tracks are playing together or something?

http://www.youtube.com/watch?v=DQMW06ZAjkY

I asked my friends, they get the same thing? Is this normal? lol