Minor & Mood

Two scales that both start on C — one bright, one melancholy. The difference is just three notes.

That is the C major scale you already know. Now look at this one.

This is C natural minor. Play each scale through, switch back and forth, and listen to the color change.

Only three notes apart

Both scales share the tonic C, so we call them parallel major and minor. Compare the lit keys: minor lowers the 3rd, 6th and 7th degrees by a half step each — E becomes E♭, A becomes A♭, B becomes B♭.

The 3rd is the real dividing line. Counting up from the tonic, major gives you a major 3rd — open and bright — while minor gives you a minor 3rd, which instantly casts a shadow. When your ear tells major from minor, this is mostly the note it is listening for.

Bright and melancholy

Major is usually described as bright and cheerful, minor as melancholy and deep. That impression is broadly reliable, but it is a tendency, not a law: a slow lullaby in major can be tender enough to sting, and a fast dance in minor can set a whole room moving. Composers lean on this tendency to mix exactly the mood they want.

Take this with you

• Parallel major and minor: same home (tonic), different furniture (the 3rd, 6th and 7th).
• The 3rd sets the base color: major 3rd bright, minor 3rd dark.
• Major-bright and minor-dark is a tendency, not a guarantee.