Ah, yes. That's it. I can just flat the 3 and the 7 from a major scale. Then the triad chord is 1, b3, 5. That's an A minor. There's something there I may figure out sooner or later. Thanks for the pointer - I'll try to make it through that tutorial...
The tutorial that Dave linked is one of mine. It might be better to start on this one that explains the basics, origin & structure of all seven modes of the major scale.
https://www.guitartricks.com/tutorial/370
Essentially, if you give each note of the major scale a chance to start the scale sequence you wind up with a different set of intervals. And thus a different sound.
So if you start any major scale on the 2nd note of the scale, and play through the scale to the next octave, you wind up with the dorian mode of that scale. And that set of notes has a unique set of intervals. In the dorian mode that's basically a minor scale with a major 6th.
1st - 2nd - minor 3rd - 4th - 5th - major 6th - minor 7th
The tutorial linked above goes through each of the 7 natural modes.
After you understand that all 7 modes are essentially just different ways of playing the major scale, and learn each of the resulting interval sets, then you can use it for it's unique sound irrespective of it's parent major scale.
And that is what these tutorials are about.
https://www.guitartricks.com/tutorial/770
https://www.guitartricks.com/tutorial/2630
Hope that helps!
