I don't take it as a criticism or a derail. "au contraire" they say.
After going back and forth, it kinda looked already like that to me.
I assumed it might be there is a general concept, something like what in jazz is called tritone-subst or secondary dominant, you don't see it right away, but if explained it is easy, and i simply wouldn't see it or lack the correct terms.
If the answer is "kinda by feel" or as in the video linked to above "works well as open chords on the guitar" that is fine for me.
And, truth to be told, even if there is a secret concept, as far i can tell yet: I wouldn't understand it. Or at least not easily.
Say: looking at the notes of each chord, i saw a way they move in an interesting way (always one halfstep to be found in each chord change).
So, to sum it up, thanks a lot, thanks a lot to anyone who answered and gave insight. I'll keep digging.
