Minor Scales Explained: Natural, Harmonic, and Melodic
The Sound of the Minor Scale
If the major scale is the sound of sunlight and happiness, the minor scale is often described as its moody, emotional, or even "sad" sibling. But reducing it to just "sadness" is doing it a disservice. The minor scale provides depth, tension, and a sense of mystery that makes music truly compelling.
Unlike the major scale, which has one standard pattern, the minor scale actually comes in three different flavors: Natural, Harmonic, and Melodic. Why? Because composers over the centuries felt that the natural minor scale needed a little "fixing" to make it work better for melodies and harmonies. Let's dive into each one.
1. The Natural Minor Scale
The natural minor scale is the foundation. It's built using a specific pattern of whole steps (W) and half steps (H). If you've already read our guide on intervals, this will be easy to visualize.
The Pattern: W - H - W - W - H - W - W
For example, A Natural Minor uses all white keys on the piano: A - B - C - D - E - F - G - A.
The Relative Minor Concept
Every major scale has a "relative minor" scale that shares the exact same notes. To find it, just go to the 6th note of any major scale.
- C Major: C, D, E, F, G, A, B, C
- A Minor: A, B, C, D, E, F, G, A
2. The Harmonic Minor Scale
Composers liked the sound of the natural minor, but they had one problem: the 7th note of the scale is a whole step away from the tonic (the "home" note). In major scales, that 7th note is only a half step away, creating a strong pull or "leading" feeling back to home.
To fix this in minor, they decided to raise the 7th note by a half step. This creates the Harmonic Minor scale.
A Harmonic Minor: A - B - C - D - E - F - G# - A
The result is a very distinctive, "exotic" sounding interval between the 6th and the raised 7th note (an augmented 2nd). You'll hear this scale all over classical music, metal, and traditional folk music. It creates a much stronger sense of resolution when you move from the V chord back to the i chord in chord progressions.
3. The Melodic Minor Scale
While the raised 7th note in the harmonic minor made the harmony work great, it created a weirdly large gap (that augmented 2nd we mentioned) that was sometimes awkward to sing in a melody. To smooth out that gap, composers decided to raise both the 6th and 7th notes when going up the scale.
A Melodic Minor (Ascending): A - B - C - D - E - F# - G# - A
But here's the twist: traditionally, when the melody comes back down, those notes are lowered back to their natural state. This is because the "leading tone" pull is only needed when moving up toward the tonic.
A Melodic Minor (Descending): A - G - F - E - D - C - B - A (Same as Natural Minor)
Note: In modern jazz theory, we often play the raised 6th and 7th both up and down, which we call the "Jazz Minor" scale.
Comparing the Three Scales
To keep it simple, think of it like this, starting from the Natural Minor:
- Natural Minor: The basic version. (1, 2, b3, 4, 5, b6, b7)
- Harmonic Minor: Raise the 7th. (1, 2, b3, 4, 5, b6, 7)
- Melodic Minor: Raise the 6th and 7th (when going up). (1, 2, b3, 4, 5, 6, 7)
Why Does This Matter for Songwriters?
Knowing these variations gives you a massive palette of emotional colors.
- Use Natural Minor for a folk-like, modal, or very dark and flat sound.
- Use Harmonic Minor when you want those powerful, "classical-sounding" V7 to i resolutions.
- Use Melodic Minor for sophisticated melodies that have a slightly "brighter" minor feel.
Final Thoughts
The minor scale isn't just one scale; it's a versatile system of three variations that work together to create some of the most beautiful music ever written. Don't feel like you have to master them all today. Start with the Natural Minor, get comfortable with the concept of the Relative Minor, and then experiment with raising that 7th note to see how it changes the "feeling" of your songs.
Music theory should be a tool for your creativity, not a set of restrictive rules. The minor scales are the perfect example of how theory evolved to serve the emotional needs of composers. Now go grab your instrument and see which minor flavor suits your mood today!