---
title: Scales
category: Fundamentals
slug: scales
related: [intervals, keys-and-key-signatures, what-are-modes, major-scale-modes]
url: https://fourthshub.com/docs/scales
---

# Scales

A **scale** is an ordered collection of pitches arranged by ascending or descending pitch, typically spanning one octave. Scales provide the raw material for melody and harmony.

## The Major Scale

The most important scale in Western music. Its construction follows a fixed pattern of whole (W) and half (H) steps:

**W - W - H - W - W - W - H**

In C major: **C - D - E - F - G - A - B - C**

This pattern produces seven distinct pitches (scale degrees) before repeating at the octave. Every major scale, regardless of starting note, follows this exact intervallic formula.

## Scale Degrees

Each note in a scale has a function defined by its position:

1. **Tonic** - Home base, the key center
2. **Supertonic** - One step above tonic
3. **Mediant** - Defines major/minor quality
4. **Subdominant** - The "plagal" degree
5. **Dominant** - The strongest pull back to tonic
6. **Submediant** - Relative major/minor pivot
7. **Leading Tone** - Half step below tonic, creates strongest resolution

## The Three Minor Scales

**Natural minor** (Aeolian mode): W-H-W-W-H-W-W. Relative to major, the formula is 1-2-b3-4-5-b6-b7. Dark and melancholic.

**Harmonic minor**: Raises the 7th degree of natural minor (1-2-b3-4-5-b6-7), creating a leading tone. The augmented 2nd between b6 and 7 gives it an exotic, classical sound.

**Melodic minor** (ascending): Raises both the 6th and 7th degrees (1-2-b3-4-5-6-7). In jazz, this form is used both ascending and descending, and is the parent scale for some of the most important jazz modes including the altered scale.

## Chromatic and Whole Tone

The **chromatic scale** uses all 12 notes in half steps. The **whole tone scale** uses six notes all separated by whole steps, creating a dreamy, symmetrical sound with no tonal center. Both are symmetric scales with unique properties.

## Why Scales Matter

Scales are the vocabulary of music. Melodies draw their notes from scales, chords are built by stacking scale degrees, and improvisation is fundamentally about navigating scale choices in real time over changing harmony.