A Cyclocross race has its own pattern and heartbeat. If you have a chance at winning(which I do not), the first lap is a high intensity chess match of positioning. If you get snaked or end up behind someone slow or crash prone, it is almost impossible to climb back up the field. The first lap is also almost completely adrenaline. You settle in actual breathing in the second lap. Given the pacing and tension in the first few laps as you angle for positions and attempt to settle into a sustainable pace, I end up with random songs or thoughts stuck in 5 second loops in my brain, not unlike a scratched lp or cd. Everything is immediate and quick and there is simply no room for thoughts or songs to develop beyond their main point or hook.
For the first 3 laps all I could think of was an endless loop of the refrain to Judas Priest's "Painkiller." I don't really love Priest, but they are catchy enough to give me a chuckle now and again. By the second half of the race I actually settled into complete thoughts, though I was still left with a need to rewatch "Heavy Metal Parking Lot" from 1986. It's simply amazing and frightening at the same time. Completely hilarious, and the Priest songs kind of rock. It is below across 2 youtube clips and totals 17 minutes.