Watch the Simple Intervals online guitar lesson by Brad Carlton from Guitar Lab: Dorian Dominance

This lesson examines the A Dorian mode in intervals of fifths. Diagram 75 shows the layout for these on the fourth and third strings, diagram 76 the fourth and second strings, diagram 77 the third and second strings, and diagram 78 the third and first strings.

As you play these intervals, try to see the two linear Dorian mode scales that exist on each string.