Neapolitan Minor

The Neapolitan second

Lowering the second degree of a harmonic minor gives this scale, and the alteration has a name of its own in classical harmony: the Neapolitan sixth, a major chord built on the flat second and usually voiced in first inversion. The scale is that chord's home.

Everything else stays as it was. The raised seventh still leads to the root, the flat sixth still sits above the fifth, and the augmented second between them is inherited from the harmonic minor rather than added here.

Building it from any root

Count: half, whole, whole, whole, half, augmented second, half. In C the notes are C D♭ E♭ F G A♭ B; in A, A B♭ C D E F G♯; in E, E F G A B C D♯.

It is easiest to reach through the harmonic minor rather than from scratch: play the shape you know and drop the second a half step. On guitar that means one finger moves and the rest of the position stays put.

The chords underneath

The tonic is a minor triad with a natural seventh above it, and the second degree gives the major chord that names the scale. That pairing — a minor home and a major chord a half step above it — is the harmonic device the scale exists to explain.

The Neapolitan chord classically moves to the dominant, and the scale supplies both: the flat second and the leading tone are present at once, which is exactly what a ♭II going to V needs melodically.

Where it is used

Classical repertoire uses the Neapolitan chord constantly — Beethoven's Moonlight Sonata opens its first movement with one — and this scale is the melodic consequence of that harmony rather than an exotic import. Anyone who has played a Neapolitan sixth has already used most of these notes.

In jazz and metal it is used more directly, as a source of melody over a minor tonic that wants a half-step neighbour above the root. Flamenco-adjacent playing reaches for it too, though the Phrygian is more common there.

Modes and neighbours

The scale has seven rotations, and the useful one is the second degree, which produces a Lydian with a sharp sixth — a bright, floating set of notes that shares nothing with the parent except its contents. The others are catalogued more than used.

Its family neighbour is the Neapolitan major, which flattens the second in the same way but keeps the sixth and seventh natural: 1 b2 b3 4 5 6 7. The difference is the upper half, and it is a difference of mood rather than of technique.

What it is confused with

The Phrygian mode also has a flat second, and the two are mixed up regularly. The Phrygian has a flat seventh and no leading tone; this scale has a natural seventh, and that one note changes it from modal to functional — it can close a cadence, and the Phrygian cannot.

The Phrygian dominant sits between them, with a flat second and a major third. Comparing all three from the same root is the quickest way to hear which is which.

Frequently asked questions