Minor scale

Lore & Background

The natural minor scale is the diatonic Aeolian mode, playable on the white keys as A–B–C–D–E–F–G. It shares a key signature with C major, making them relatives. The major scale sits a third above its relative minor. Beginning in the 17th century, the major and natural minor scales were the two dominant modes of tonal music. The term 'natural minor' was not in common use until the twentieth century. The harmonic minor scale was developed to restore the missing leading tone, creating an augmented second between the sixth and seventh scale degrees. This scale is common in classical music, appearing in works by Mozart and Beethoven. Nikolai Rimsky-Korsakov considered it part of the 'basis of harmony.' Spirituals like 'Go Down Moses' and 'Soon I Will Be Done' employ it, and heavy metal guitarists often orient its use around the dominant. The melodic minor scale was developed to avoid the augmented second of the harmonic minor. When ascending, the sixth and seventh degrees are raised as in the major scale; when descending, they are lowered to natural minor positions. The ascending form is sometimes called a 'jazz minor scale.' Elton John uses it in 'Sorry Seems to Be the Hardest Word.'

Reader's Guide

The minor scale is a foundational element of Western music, providing a contrast to the major scale through its lowered third degree. Its three common forms—natural, harmonic, and melodic—each address specific compositional needs. The natural minor, identical to the Aeolian mode, lacks a leading tone, which historically made cadences difficult. The harmonic minor solves this by raising the seventh, but introduces an augmented second that can be melodically awkward. The melodic minor smooths this by raising the sixth and seventh on ascent, then lowering them on descent. These scales generate distinct harmonic landscapes: the natural minor's tonic, subdominant, and dominant chords are all minor, while the harmonic minor's raised seventh creates a major dominant chord. The melodic minor's ascending form is widely used in jazz. Beyond these, the Dorian and Phrygian modes are also considered minor scales. The minor scale's influence extends from classical works by Mozart and Beethoven to spirituals, heavy metal guitar solos, and popular music. Its variations, such as the Hungarian minor (raised fourth) and Neapolitan minor (lowered second), further expand its expressive range.

Did You Know?

• The natural minor scale shares a key signature with its relative major, which sits a third above.
• The harmonic minor scale creates an augmented second between the sixth and seventh scale degrees.
• Worcester Cathedral rings its 'Harmonic Minor 10' on solemn occasions like Good Friday and Armistice Day.
• The ascending melodic minor scale is sometimes referred to as a 'jazz minor scale'.

The Natural Minor and Its Kinship with Major

The natural minor scale, also known as the Aeolian mode, is the most fundamental form of the minor scale. Its defining feature is a minor third interval above the tonic, and in its most recognizable form, the notes A through G on the piano's white keys spell it out without any accidentals. Because it shares its key signature with C major, the two scales are considered relative keys, with the major scale sitting a third above its minor counterpart. Both scales contain the same interval collection—two semitones and five whole tones—yet they produce strikingly different harmonic results. In natural minor, the tonic, subdominant, and dominant chords all carry a minor quality, and the absence of a leading tone made it difficult for composers to write convincing cadences. This very limitation became the catalyst for the two other common minor scale variations. From the seventeenth century onward, the major and natural minor scales served as the two dominant modes of Western tonal music, and the term "natural minor" itself did not enter common usage until the twentieth century.

The Harmonic Minor and Its Wide Reach

The harmonic minor scale emerged as the most direct fix for the natural minor's missing leading tone: simply raise the seventh degree. This single alteration creates an augmented second between the sixth and seventh scale degrees, an interval that sounds awkward in melodic lines. Despite that quirk, the harmonic minor became embedded in classical composition. Mozart employed it in his Piano Sonata No. 16, while Beethoven, in later works such as the Grosse Fuge, leaned on the scale's upper tetrachord to generate tonal ambiguity and push chromaticism to its limits. Rimsky-Korsakov regarded the harmonic minor as part of the foundation of harmony and coined the term "harmonic major scale" for a major scale with a lowered sixth. The scale's influence stretches well beyond the concert hall. Worcester Cathedral rings a bell pattern called the "Harmonic Minor 10" on solemn occasions like Good Friday and Armistice Day, with the bells half-muffled and playing a descending minor pattern. Spirituals such as "Go Down Moses" and "Soon I Will Be Done" rely on the harmonic minor, while guitar players like Yngwie Malmsteen and heavy metal musicians have built solo vocabulary around it, centering the scale on the dominant to introduce a Phrygian color.

The Melodic Minor and Its Jazz Inheritance

The melodic minor scale was developed to resolve the augmented-second awkwardness of the harmonic minor. When played in an ascending direction, both the sixth and seventh scale degrees are raised to match their positions in the major scale, leaving only the third degree lowered. This single alteration smooths out voice leading considerably. On the descent, however, the sixth and seventh degrees fall back to their natural minor positions. The constant raising and lowering of these two degrees demands a great many accidentals in written music, yet the alterations have become so commonplace that they are treated as diatonic, with the primary minor key signature prevailing. The ascending form of the melodic minor is frequently called the "jazz minor scale," a label that reflects its widespread adoption in jazz and popular music. Elton John, for instance, uses the melodic minor in his ballad "Sorry Seems to Be the Hardest Word," demonstrating how the scale's smooth ascending contour can lend emotional depth to a pop melody. The melodic minor thus stands as the most melodically fluid of the three standard minor scales, bridging the gap between the stark natural minor and the structurally tense harmonic minor.

Beyond the Three: Modes and Extended Minor Scales

The label "minor" extends well beyond the three standard scale types. Any scale that features a minor third above the tonic or produces a minor tonic triad can be classified as minor, and this broad definition encompasses several of the ancient church modes. The Dorian mode is the most common example of a minor mode outside the three standard scales, while the Phrygian mode is another frequently cited minor mode. The Aeolian, Phrygian, and Dorian modes are all explicitly recognized as examples of minor scales. Gapped or incomplete scales can also take on a minor character; the pentatonic scale, for instance, can appear in a minor guise, offering a simplified five-note version of the minor sound. The harmonic minor family itself has spawned regional and stylistic variants: the Hungarian minor scale raises the fourth degree of the harmonic minor, while the Neapolitan minor scale lowers the second degree. These variations demonstrate that the minor scale is not a single fixed entity but a flexible framework that composers and musicians across cultures have adapted to suit diverse harmonic and melodic needs.