Parallel Modes Dorian All Forms
A Dorian Scale Shown
A Dorian is found in the G Major Scale
A is the 2nd (Dorian) tone of the G Major Scale

The Dorian Mode is a minor mode due to the flattened 3rd tone of the scale. The Dorian Mode is built from the second tone of the Major Scale. The Dorian Mode is formed by lowering the 3rd and 7th tones of the Major scale 1/2 step.