A♭ Mixolydian Mode

Notes in the A♭ Mixolydian Mode

Degree Name Note Frequency (A=440)
1 Tonic A♭ 415.305 Hz
2 Supertonic B♭ 466.164 Hz
3 Mediant C 261.626 Hz
4 Subdominant D♭ 277.183 Hz
5 Dominant E♭ 311.127 Hz
6 Submediant F 349.228 Hz
♭7 Subtonic G♭ 369.994 Hz

Interval Pattern

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

Chords Built on Scale Degrees

Degree Note Chord Quality
1 A♭ A♭ major
2 B♭ B♭ minor minor
3 C C diminished diminished
4 D♭ D♭ major
5 E♭ E♭ minor minor
6 F F minor minor
♭7 G♭ G♭ major

Key Signature

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

A♭ Mixolydian Mode in Practice

The A♭ Mixolydian Mode 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 Mixolydian mode is like a major scale with a flat 7th, giving it a bluesy, rock quality. It appears in rock, blues, folk, and Celtic music and is essential for dominant chord improvisation. When played starting on A♭, the 7 notes are A♭, B♭, 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
B♭ 466.164 Hz 463.538 Hz 470.926 Hz
C 261.626 Hz 260.740 Hz 261.626 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♭ 369.994 Hz 371.251 Hz 367.911 Hz

Related Scales

Transposing Instruments: A♭ Mixolydian Mode

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.