a. The formula for a natural minor scale is minor(m), Link (L), Natural (N). A natural minor scale is a series of eight consecutive notes with the intervals between notes being two half steps, one half step, two half steps, two half steps, one half step, two half steps, two half steps (Figure 3-1).

b. On a keyboard, the interval relationships correspond to a white key scale from a to a (Figure 3-2).