Little Cubic Car
Day 1 of my promised week of practising Blender by animating the simplest boxes possible.
I used curves and Bevel objects for the tires, remembered to place an object's origin at the centre to get it to copy nicely in an array (in the tire rims) [only object offset needed once you rotate around an empty],
and remembered to use "Vector" handle types rather than "Free" to get nice corners in a curve, easily extruded with E so the control handles always automatically point to the points.
I also did some math to get the loop and wheels at the right speed:
Luckily, you can type math directly into Blender text fields!
The camera should've probably been closer... but if I keep tweaking I'll never upload.
I ran into some weird flashing happened on random frames of the render, seems to come from the lights in Eevee...
And whew this whole "interesting music" thing is hard. I'll probably focus more on the animation next time.
Little Cubic Car
Look at it go!