Jazzy Jam Backing Track in C minor

It's in C minor. There's a joke in there somewhere. An oldie but a goodie.
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[@morrispatrick6]

my new favorite

[@rocksoli4]

Probably the best backing track on UA-cam ....can't believe it's only got 3k hits

[@camdengonzales4352]

Awesome, can you make the same backing track for different keys? That would be amazing man!!!

[@countblue]

I sadly did not get the joke. Could you give me a hint? Great jam track BTW. ;-) Thanks

[@ghostjazztrio]

What is the chord progression?