A♭ Neapolitan Major Scale

Notes in the A♭ Neapolitan Major Scale

Degree Name Note Frequency (A=440)
1 Tonic A♭ 415.305 Hz
♭2 Neapolitan 2nd A 440.000 Hz
♭3 Minor Mediant C♭ 493.883 Hz
4 Subdominant D♭ 277.183 Hz
5 Dominant E♭ 311.127 Hz
6 Major Submediant F 349.228 Hz
7 Leading Tone G 391.995 Hz

Interval Pattern

Formula: H-W-W-W-W-W-H
Step Interval Semitones From Note To Note
1 Half Step (H) 1 A♭ A
2 Whole Step (W) 2 A C♭
3 Whole Step (W) 2 C♭ D♭
4 Whole Step (W) 2 D♭ E♭
5 Whole Step (W) 2 E♭ F
6 Whole Step (W) 2 F G
7 Half Step (H) 1 G A♭

Chords Built on Scale Degrees

Degree Note Chord Quality
1 A♭ A♭ minor minor
♭2 A A augmented augmented
♭3 C♭ C♭ augmented augmented
4 D♭ D♭ major
5 E♭ E♭ (complex) other
6 F F diminished diminished
7 G G (complex) other

Key Signature

4 — The A♭ key signature uses B♭, E♭, A♭, D♭.

A♭ Neapolitan Major Scale in Practice

The A♭ Neapolitan Major Scale uses the key signature of 4 flats (B♭, E♭, A♭, D♭). Ab major has four flats and a full, somewhat dark sound. It is a common key in Romantic piano music and is frequently encountered in orchestral and choral writing. On guitar, A♭ positions offer comfortable transposing instrument keys for this scale.

The Neapolitan major scale starts with a half step and flat 2nd degree, derived from the Neapolitan chord in classical harmony. It has a rich, romantic character used in classical and contemporary composition. When played starting on A♭, the 7 notes are A♭, A, C♭, D♭, E♭, F, G. In this key the signature has 4 flats (B♭, E♭, A♭, D♭). Ab major is a favored key for Romantic piano music, where the mix of black and white keys creates a comfortable hand shape for flowing arpeggios. Pop ballads and R&B songs frequently use Ab because vocalists find the key sits well in the middle of their range, and the rich sonority suits emotional delivery.

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Note Equal Temp. Pythagorean Just Intonation
A♭ 415.305 Hz 417.657 Hz 418.601 Hz
A 440.000 Hz 440.000 Hz 436.043 Hz
C♭ 493.883 Hz 495.000 Hz 490.548 Hz
D♭ 277.183 Hz 278.437 Hz 279.067 Hz
E♭ 311.127 Hz 309.026 Hz 313.951 Hz
F 349.228 Hz 347.654 Hz 348.834 Hz
G 391.995 Hz 391.111 Hz 392.438 Hz

Related Scales

Transposing Instruments: A♭ Neapolitan Major Scale

A♭ is a natural key for B♭ instruments (trumpet, clarinet, tenor sax), which sound a major second lower than written. B♭ instruments reading in C produce A♭ concert pitch. E♭ instruments (alto sax, baritone sax) reading in A♭ sound a major sixth lower.