A♭ Minor Triad
Chord Tones: A♭ Minor Triad
Symbol: m, min, - — Formula: 1-♭3-5
| Degree | Note | Frequency (A=440, Equal) |
|---|---|---|
| 1 | A♭4 | 415.305 Hz |
| ♭3 | B4 | 493.883 Hz |
| 5 | E♭4 | 311.127 Hz |
Chord Notation
| Notation Type | Symbol / Value |
|---|---|
| Lead Sheet Symbol | A♭m |
| All Common Symbols | m, min, - |
| Interval Formula | 1-♭3-5 |
| Harmonic Category | consonant |
Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.
Inversions
| Inversion | Notes (low to high) | Bass Note | Slash Notation |
|---|---|---|---|
| Root Position | A♭4 – B4 – E♭4 | A♭ | A♭ Minor Triad |
| First Inversion | B4 – E♭4 – A♭4 | B | A♭ Minor Triad/B |
| Second Inversion | E♭4 – A♭4 – B4 | E♭ | A♭ Minor Triad/E♭ |
Harmonic Function
The A♭ minor chord commonly functions as the submediant (♭VI) in C minor or subdominant in E♭ major. Its harmonic role varies by key — in major keys it provides subdominant or supertonic color.
The minor triad has a dark, introspective sound created by the flat third degree. It is the foundation of minor key harmony and widely used across all genres of music. The A♭ Minor Triad specifically contains 3 notes: A♭, B, E♭ (formula: 1-♭3-5). On piano, Ab-rooted chords use a combination of black and white keys that creates a relaxed hand shape, favored by Romantic-era composers for lyrical passages. Pop ballads, film scores, and neo-soul tracks often use Ab chords for their warm, enveloping quality — the key sits comfortably for many vocal ranges.
Common Progressions
The A♭ Minor Triad frequently appears in these progression patterns (shown in Roman numeral notation relative to key):
Songs Featuring the Minor Triad
Well-known songs where the A♭ Minor Triad — or this chord type — plays a prominent role:
- Stairway to Heaven – Led Zeppelin
- Nothing Else Matters – Metallica
- Losing My Religion – R.E.M.
Tuning Frequencies Across Temperaments
Frequencies shown at A=440 Hz. View full temperament data for any note.
| Note | Equal Temp. | Pythagorean | Just Intonation |
|---|---|---|---|
| A♭4 | 415.305 Hz | 417.657 Hz | 418.601 Hz |
| B4 | 493.883 Hz | 495.000 Hz | 490.548 Hz |
| E♭4 | 311.127 Hz | 309.026 Hz | 313.951 Hz |
Scales Containing the A♭ Minor Triad
These scales include the A♭ Minor Triad as a diatonic or characteristic chord: