and the vision that was planted in my brain still remains

I rang the hospital this morning, and my scan is booked for Thursday this week. The nice lady who made the appointment with me told me that the whole thing will take at least 90 minutes and that I was allowed to bring a CD with me to listen to as I was trapped in the tube.

"What kind?"
"Oh anything you like, as long as it doesn't make you dance"

And with that, ladies & gentlemen, I am open to all suggestions.