# G Suspended 2nd piano chord (Gsus2)

Gsus2 contains G, A and D. The third replaced by the second. Every note is a white key.

- Canonical page: https://piano.org/chords/suspended-2nd/g/
- Entity: chord:sus2:g
- Notes: G A D
- Formula: 1 2 5
- Intervals from root: P1, M2, P5
- Interval stack (semitones): 2 5
- Also written: Gsus2, Gsus2, G suspended 2nd
- Parameters: A440, 12-TET, 165 mm octave, spans centre to centre

## Construction

| Degree | Note | Interval from root | Semitones |
| --- | --- | --- | --- |
| 1 | G | Perfect unison | 0 |
| 2 | A | Major second | 2 |
| 5 | D | Perfect fifth | 7 |

## Fingering

Rest your right hand over the notes with finger 1 on G, finger 3 on A, finger 5 on D. The left hand mirrors it.
Right hand 1-3-5, left hand 5-3-1. Source: piano.org fingering method v1.

## Inversions

| Position | Bass | Notes in order | Figured bass | Span |
| --- | --- | --- | --- | --- |
| Root position | G | G3 A3 D4 | 5/3 | 7 st, 96 mm |
| First inversion (Gsus2/A) | A | A3 D4 G4 | 6/3 | 10 st, 138 mm |
| Second inversion (Gsus2/D) | D | D4 G4 A4 | 6/4 | 7 st, 96 mm |

## Voicings (5)

| Voicing | Notes | Span | Relation | Omits or adds |
| --- | --- | --- | --- | --- |
| Close, root position | G3 A3 D4 | 7 st, 96 mm | identical | none |
| Close, first inversion | A3 D4 G4 | 10 st, 138 mm | identical | none |
| Close, second inversion | D4 G4 A4 | 7 st, 96 mm | identical | none |
| Open, fifth on top | G2 D3 A3 | 14 st, 193 mm | identical | none |
| Root and third only | G3 A3 | 2 st, 28 mm | subset | omits D |

## One-edit neighbors

| Becomes | Edit | Changes | Common tones |
| --- | --- | --- | --- |
| Gadd9 | 1 3 5 9 | adds B | 3 |
| G | 1 3 5 | A becomes B | 2 |
| Gm | 1 ♭3 5 | A becomes B♭ | 2 |
| Gsus4 | 1 4 5 | A becomes C | 2 |
| Gmaj7 | 1 3 5 7 | A becomes B, F♯ | 2 |
| G7 | 1 3 5 ♭7 | A becomes B, F | 2 |
| Gm7 | 1 ♭3 5 ♭7 | A becomes B♭, F | 2 |
| GmMaj7 | 1 ♭3 5 7 | A becomes B♭, F♯ | 2 |
| G7sus4 | 1 4 5 ♭7 | A becomes C, F | 2 |
| G6 | 1 3 5 6 | A becomes B, E | 2 |
| Gm6 | 1 ♭3 5 6 | A becomes B♭, E | 2 |
| Gdim | 1 ♭3 ♭5 | A, D becomes B♭, D♭ | 1 |

## Set theory

- Absolute pitch classes: {7, 9, 2}
- Relative pitch classes: [0, 2, 7]
- Normal order: [7, 9, 2]
- Prime form: (027)
- Forte number: 3-9
- Interval vector: <010020>

## Frequencies (close root position)

| Note | MIDI | Frequency |
| --- | --- | --- |
| G3 | 55 | 196.00 Hz |
| A3 | 57 | 220.00 Hz |
| D4 | 62 | 293.66 Hz |

## Questions and answers

### What notes are in Gsus2?

Gsus2 contains G, A and D. The formula is 1, 2, 5.

### How do you play Gsus2 on piano?

Play G, A and D together. Right hand fingers 1, 3, 5; left hand 5, 3, 1. Every note is a white key.

### What are the inversions of Gsus2?

3 positions: root position G A D, Gsus2/A, Gsus2/D.

### What is the difference between Gsus2 and Gadd9?

Adds B. 3 of the notes are shared.

### What is an easy Gsus2 for small hands?

The root and third only voicing, G3 A3, spans 2 semitones or about 28 mm.

### What are the frequencies of Gsus2?

From G3 at A440 in 12-TET: 196.00, 220.00, 293.66 Hz.

### What is the set class of Gsus2?

Prime form (027), Forte 3-9, interval vector &lt;010020&gt;.

### How do I transpose Gsus2 to another key?

Keep the 1, 2, 5 formula on the new root. Csus2 is C, D, G; C♯sus2 is C♯, D♯, G♯.

## Provenance

Every derived value above is computed by the piano.org theory kernel from the root, the quality and the stated parameters. Nothing is hand-entered per chord.

Machine record: https://piano.org/api/knowledge/v1/entities/chord:sus2:g
Last reviewed: 2026-08-12