FWIW - I have just copyrighted the following chord progressions:

I-IV-V
I-II-V
I-VI-II-V

In all of the possible combinations such as major chords, minor chords, alt chords etc.

I think that I'm going to make trillions of dollars grin grin

Ps - it is not the lack of good musicianship that is killing the record/CD industry it's the lawyers that are killing the record/CD industry mad

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware