The thing about a good studio bassist is that your ego has to be fulfilled by playing the right part, not the fanciest. It is also important to remember that even simple stuff has to be played properly.
I swear one of the most difficult things I've ever played is the "tick tock tick tock" part that is played in the intro of Time by Pink Floyd. Or maybe it's "tock tick tock tick".
(Around 0:50).
