There is a Pit where they keep musicians, like they do at the zoo, where it is safe for the public.  But, getting to the pit can be dark and dreary.

The musicians in the pit are generally a well natured group.
But, just in case, each pit has a zookeeper (ok, conductor) to make sure everyone stays in line!

The musicians are given a score (guitar player taking pics)to focus on, and that easily tames them.  

See how happy and focused the musicans are? Keyboardists, bassist ,  bass and when they play well together, the music can seem electric!