I'm just using the CAGED system as a reference to talk about shapes here.
I will take the shape formed with A and G to explain myself here. I understand that the shape will fall in different places of the fretboard depending on the key note, but is the root note always in the same position of the shapes?
At first I thought so but then I see different charts at the internet and it seems that it doesn't. For example, in this chart, it says that the root will fall in the first note of the G shape.
BUT for example, in the minor A pentatonic scale, the G shape will have the root note on other note, because the root note will fall in the 5th fret of sixth string (A).
So in this case, the first diagram is wrong, because in the A minor pentatonic scale the root note is not that one.
Then, is it right that the root note doesn't always fall in the same place given a shape? what it depends on? maybe if it's minor, major, aeolian, dorian, or whatever type? Maybe depending on the type of scale, the shape will fall in a different place, and hence, the root key will fall at a different place in the shape.
After having said this, I would appreciate if someone can lead me to a good reference into understanding more the logic behind all this.