A♭ Persian Scale

Notes in the A♭ Persian Scale

Degree Name Note Frequency (A=440)
1 Tonic A♭ 415.305 Hz
♭2 Phrygian 2nd A 440.000 Hz
3 Major Mediant C 261.626 Hz
4 Subdominant D♭ 277.183 Hz
♭5 Tritone D 293.665 Hz
♭6 Minor Submediant F♭ 329.628 Hz
7 Leading Tone G 391.995 Hz

Interval Pattern

Formula: H-A2-H-H-W-A2-H
Step Interval Semitones From Note To Note
1 Half Step (H) 1 A♭ A
2 Aug 2nd (WH) 3 A C
3 Half Step (H) 1 C D♭
4 Half Step (H) 1 D♭ D
5 Whole Step (W) 2 D F♭
6 Aug 2nd (WH) 3 F♭ G
7 Half Step (H) 1 G A♭

Chords Built on Scale Degrees

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

Key Signature

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

A♭ Persian Scale in Practice

The A♭ Persian 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 Persian scale has a distinct Middle Eastern character with its flat 2nd and 5th degrees combined with a natural major 3rd and leading tone. It evokes the musical traditions of ancient Persian culture. When played starting on A♭, the 7 notes are A♭, A, C, D♭, D, 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 261.626 Hz 260.740 Hz 261.626 Hz
D♭ 277.183 Hz 278.437 Hz 279.067 Hz
D 293.665 Hz 293.332 Hz 294.329 Hz
F♭ 329.628 Hz 330.001 Hz 327.032 Hz
G 391.995 Hz 391.111 Hz 392.438 Hz

Related Scales

Transposing Instruments: A♭ Persian 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.