I just tried that pattern and progression things and it work like magic, I just have to find the key using pitch matching, then I found that most of the song is 1-4-5 progression in the beginning and then go to either 2, 3 or 6 for the beginning of the reff section and the whole song feels instantly playable with that progression thing going on in my mind.

Can I ask you one more question, so, if most of the songs are in major key like CAGED, what about minor key? Is it common in songs, do I have to really spend time on it now, because I still have a lot of course to do in GF 2 section, so if it's not really common to use, I'd rather spend my time on something else first.

Thank you :)