Ab Suspended 2nd
Introduction
Enharmonic equivalent: A♭ is enharmonically equivalent to G♯. See G# Suspended 2nd.
Notes
Ab Suspended 2nd Inversions
| Position | Notes |
|---|---|
| Root Position | Ab4 – Bb4 – Eb5 |
| 1st Inversion | Bb4 – Eb5 – Ab5 |
| 2nd Inversion | Eb5 – Ab5 – Bb5 |
Key Signature
The key of Ab Suspended 2nd has 4 flats: B♭, E♭, A♭, D♭.
Theory: Intervals
The Ab Suspended 2nd is built by stacking intervals from the root note. The formula R-M2-P5 describes the scale degrees used. The intervals P1-M2-P5 show the distance between each note in the chord.
Ab Suspended 2nd — Frequently Asked Questions
What notes are in the Ab Suspended 2nd chord?
The Ab Suspended 2nd chord (Absus2) contains: Ab (root), Bb (major 2nd), and Eb (perfect fifth). The major 2nd replaces the third entirely — there is no major or minor third, giving this chord its open, floating quality.
How does Ab Suspended 2nd differ from Ab Major or Ab Minor?
Both Ab Major and Ab Minor have a third (E or Eb for C-based chords). Ab Suspended 2nd replaces that third with a major 2nd (Bb). This suspension creates ambiguity — the chord is neither major nor minor and has a bright, airy sound often used for colour and transition.
What does "suspended" mean in music?
"Suspended" means the third has been replaced (suspended) by another note — in this case, the 2nd degree. The suspension creates tension that traditionally resolves back to the third (moving from Bb to the major or minor third). In pop music, suspended chords often remain unresolved for their pleasant, neutral sound.
How is Ab Suspended 2nd used in music?
Sus2 chords are widely used in pop, rock, and folk as colour chords that avoid defining major or minor quality. Absus2 works before or after a Ab Major chord in the same harmonic context, creating a shimmer effect. It also appears at phrase endings for an open, unresolved feeling.
What songs use suspended 2nd chords?
Suspended chords are everywhere in pop: Every Breath You Take (Police) uses sus chords throughout. Pinball Wizard (The Who) opens with sus4 chords. Somebody That I Used to Know (Gotye) uses sus2 for its characteristically open sound. The floating quality of sus2 chords suits introspective and atmospheric music.
Can I use Ab Suspended 2nd and Ab Major together?
Yes — alternating between Absus2 and Ab Major is a very common pop technique. The movement Ab–Bb–Eb → Ab–(major 3rd)–Eb creates a shimmer with only one note changing. This single-note movement is the basis of many recognisable piano and guitar parts.
Practice Tips
- Compare Absus2 (Ab Bb Eb) with Ab Major — only the middle note changes. Play them alternately to hear the shimmer effect.
- The 2nd degree (Bb) in a sus2 chord creates a floating, unresolved quality. Let it breathe before resolving to the major chord.
- Try Absus2 → Ab Major → Absus4 → Ab Major as a loop — this classic suspended movement underpins countless pop songs.
- Sus2 chords work well at the beginning or end of phrases to create an open, questioning feeling before resolution.
- Practice moving from Absus2 to nearby chords: → Ab Major, → Ab minor, → IV Major. Feel how each resolution changes the mood.
- In a ballad context, sustain Absus2 for a full measure before resolving — the sustained suspension creates emotional weight.