The G augmented chord contains G, B and D♯. Written Gaug or G+, it raises the fifth of G major from D to D♯ while keeping G and B.
Build the G augmented chord with degrees 1–3–♯5. G to B and B to D♯ are both major thirds, four semitones apart. The D♯ spelling identifies the raised fifth above G.
Preserve the written note spelling shown for this chord.
Choose a position to keep the written notes, sounding keys, bass note, playback and print reference synchronized.
Gaug uses 1–3–♯5: G–B–D♯.
Compared with G major, raise the fifth by one semitone.
The chord tones stay the same while the lowest chord tone changes.
| Position | Symbol | Notes, low to high | Bass |
|---|---|---|---|
| Root position, current selection | Gaug | G3–B3–D♯4 | G3 |
| First inversion | Gaug/B | B3–D♯4–G4 | B3 |
| Second inversion | Gaug/D♯ | D♯4–G4–B4 | D♯4 |
The G augmented chord diagrams show keys and note order rather than prescribed fingers. Compare root position with both inversions: G, B and D♯ stay present while the lowest note changes.
Use the written notes, keyboard positions and playback without treating the diagram as a required hand shape.
Read left- and right-hand finger numbersOpen Music Theory
Supports: augmented triad formula and written tone spelling
Scope: Supports the chord formula and spelling only; keyboard layouts are PianoGrid examples, and no fingering is assigned.
G, B and D♯. The formula 1–3–♯5 names the root, major third and augmented fifth.
G+ is another symbol for the G augmented chord. The plus sign describes the triad quality; it does not add a seventh.
G major contains G–B–D. Raise only D by one semitone to D♯ and compare the sounds.
They use the same piano key, but D♯ preserves the fifth letter name above G. E♭ would describe a differently spelled interval.
Select the three pitch classes that make Gaug, then check your answer.
This one-octave exercise checks pitch classes. Order and octave do not affect the result; fingering and live performance are not assessed.
One octave, C through B. Select a key again to remove it.
Chord tones: G–B–D♯ · Formula: 1, 3, ♯5
Dots mark the notes to play. C4 is middle C. Numbers identify octaves, not fingers.