When I was first learning about scales, I was taught that modes are nothing more than variations on the major scale, but just "starting on a different interval" than the root e.g. A Dorian is the same as G Ionian starting on the 2nd interval, C Lydian same as G but starting on the 4th etc. I'm sure this concept comes in handy, but have you really found this to be helpful? My problem is I keep thinking that A Dorian has to "resolve" to the G or D Mixolydian resolves to G. Do you get what I'm saying? I didn't really get the sound of the individual modes that way because they were too tied in my mind to the relative major scale's root note. I know jazz guys love this concept however. Many of my keyboard playing friends learned the modes differently. They would take G major, then play G Dorian, then G Phrygian etc. That way they think of the modes as separate tonalities. They would build chords off the modes, write songs within the modes. Without thinking of "A Dorian is in the key of G" kind of thing. The mode would just stand on its own. So how do you think of modes? Same scale just rearranged? Or different tonalities all together? Which approach has made the biggest impact on your playing? Do jazz guys think of it one way? Joe Satriani types another?