A few years ago my wife and I stayed at the GF. When grad night was going on it woke us up. We were in a room inside the main lobby. I thought the noise was coming from the cigar bar underneath of us. It was only loud when a band was playing and you could hear that teeny bopper scream every few minutes.
I called the front desk and they advised us it was grad night and the noise will go on all night.
I did however fall back to sleep shortly afterwards.
I can't say what you will hear at the Contemporary, but I hope this helps.
It shouldn't bother you to much.