Eb Augmented

Notes:Eb – G – B
Formula:R-M3-A5
Intervals:P1-M3-A5
Scale Degrees:1-3-#5

Introduction

The Eb augmented piano chord (Ebaug, Eb+) consists of three notes: Eb, G, and B. It is formed by two stacked major thirds: Eb to G (4 semitones) and G to B (4 semitones). This symmetrical structure gives the augmented chord its distinctive tense, floating, and unresolved sound. The Eb augmented chord is commonly used in jazz and classical music as a chromatic passing chord, a dominant substitute with a raised fifth, or to create harmonic tension before resolution.

Enharmonic equivalent: E♭ is enharmonically equivalent to D♯. See D# Augmented.

Notes

Notes:Eb – G – B

Eb Augmented Inversions

PositionNotes
Root PositionEb4 – G4 – B4
1st InversionG4 – B4 – Eb5
2nd InversionB4 – Eb5 – G5

Key Signature

The key of Eb Augmented has 3 flats: B♭, E♭, A♭.

BEA

Theory: Intervals

Formula: R-M3-A5
Intervals: P1-M3-A5

The Eb Augmented is built by stacking intervals from the root note. The formula R-M3-A5 describes the scale degrees used. The intervals P1-M3-A5 show the distance between each note in the chord.

Eb Augmented — Frequently Asked Questions

What notes are in the Eb Augmented chord?

The Eb Augmented chord contains three notes: Eb (root), G (major third), and B (augmented fifth — one semitone higher than a perfect fifth). The augmented fifth is what gives this chord its tense, unresolved quality.

How does the Eb Augmented chord differ from Eb Major?

The only difference between Eb Augmented and Eb Major is the fifth: Eb Major has a perfect fifth, while Eb Augmented raises it by one semitone to an augmented fifth (B). This single change transforms a stable, resolved chord into one full of tension and forward motion.

What is the symbol for the Eb Augmented chord?

The Eb Augmented chord is written as Ebaug or Eb+. The "aug" or "+" symbol indicates the augmented fifth. In lead sheets and chord charts, both notations are common — Ebaug appears in classical and jazz contexts while Eb+ is common in pop and rock.

How do I use the Eb Augmented chord in music?

Augmented chords create tension and a sense of motion. The most common uses are: (1) as a chromatic passing chord between the I and IV chords (e.g., Eb → Ebaug → IV), (2) over a chromatic bass line moving upward, and (3) in jazz as a substitute for dominant chords. The augmented fifth wants to resolve up by one semitone.

What are the inversions of the Eb Augmented chord?

The Eb Augmented chord has a unique property: all three of its inversions are enharmonically equivalent. Because each note is separated by exactly 4 semitones (a major third), rotating the notes always produces the same interval structure. Ebaug in root position, first inversion, and second inversion all sound the same quality.

What songs use augmented chords?

Augmented chords appear in Oh! Darling (Beatles), which uses Aaug as a chromatic passing chord, and in many jazz standards as chromatic dominant substitutes. Stevie Wonder and Elton John frequently use augmented chords for their characteristic tension-building quality.

Practice Tips

  • Compare Eb Major and Eb Augmented back to back — press Eb–G–(perfect 5th) then Eb–G–B to hear how the raised 5th creates tension.
  • The augmented fifth (B) wants to resolve upward by one semitone — practice Ebaug → resolving chord to feel this motion.
  • All augmented chord inversions sound the same quality — explore this by playing root, first, and second inversions in sequence.
  • Use Ebaug as a chromatic passing chord: Eb Major → Ebaug → (IV chord) to hear its most common musical function.
  • Augmented chords divide the octave into three equal parts — Ebaug, Gaug, and Baug are all the same chord (enharmonic). Verify this by playing each.
  • In jazz, try using Ebaug as a substitute for the V7 chord — the aug5 acts as a chromatic approach to the I chord's root.