So in order to work on an audition project, I'd have to be unemployed already.
So in order to work on an audition project, I'd have to be unemployed already.
But specifically if you were taking an interview rather than working a side job you could make the argument that the clause didn't apply in any case.
It all comes down to how much you pissed off your ex-employer by leaving, and how much they want revenge. No-one is going to gain anything from suing you after you've moved jobs.
But my current work contract has an anti-moonlighting clause that could also be a problem. It states that I can't have other demands on my time that would interfere with my day job. Now, I interpret that as meaning I can do side projects that have no deadline and just be luxuriously slow and lazy at making progress on them. But for an audition project I probably wouldn't be able to take it that slow.