What Does This Mean?
We've established earlier that you can play a dorian mode on a minor chord, to give you a specific sound. Now, since we know that the dorian mode is simply a major scale starting on the second note, we know that we can use both scale patterns to give us a dorian sound.
For example, let's say we wanted to solo over an Aminor chord using an A dorian mode. Knowing that A dorian = G major, we can use the G major scale to solo over that A minor chord. Similarly, we can use an A dorian scale to solo over a G major chord.
REMEMBER: the notes "G" and "A" are used only for example. The above applies to all major scales - the dorian mode starts on the second degree of any major scale. So, the D dorian mode comes from the C major scale, the G dorian mode comes from the F major scale, etc.
