# D Suspended 2nd piano chord (Dsus2)

Dsus2 contains D, E and A. The third replaced by the second. Every note is a white key.

- Canonical page: https://piano.org/chords/suspended-2nd/d/
- Entity: chord:sus2:d
- Notes: D E A
- Formula: 1 2 5
- Intervals from root: P1, M2, P5
- Interval stack (semitones): 2 5
- Also written: Dsus2, Dsus2, D suspended 2nd
- Parameters: A440, 12-TET, 165 mm octave, spans centre to centre

## Construction

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

## Fingering

Rest your right hand over the notes with finger 1 on D, finger 3 on E, finger 5 on A. 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 | D | D3 E3 A3 | 5/3 | 7 st, 96 mm |
| First inversion (Dsus2/E) | E | E3 A3 D4 | 6/3 | 10 st, 138 mm |
| Second inversion (Dsus2/A) | A | A3 D4 E4 | 6/4 | 7 st, 96 mm |

## Voicings (5)

| Voicing | Notes | Span | Relation | Omits or adds |
| --- | --- | --- | --- | --- |
| Close, root position | D3 E3 A3 | 7 st, 96 mm | identical | none |
| Close, first inversion | E3 A3 D4 | 10 st, 138 mm | identical | none |
| Close, second inversion | A3 D4 E4 | 7 st, 96 mm | identical | none |
| Open, fifth on top | D2 A2 E3 | 14 st, 193 mm | identical | none |
| Root and third only | D3 E3 | 2 st, 28 mm | subset | omits A |

## One-edit neighbors

| Becomes | Edit | Changes | Common tones |
| --- | --- | --- | --- |
| Dadd9 | 1 3 5 9 | adds F♯ | 3 |
| D | 1 3 5 | E becomes F♯ | 2 |
| Dm | 1 ♭3 5 | E becomes F | 2 |
| Dsus4 | 1 4 5 | E becomes G | 2 |
| Dmaj7 | 1 3 5 7 | E becomes F♯, C♯ | 2 |
| D7 | 1 3 5 ♭7 | E becomes F♯, C | 2 |
| Dm7 | 1 ♭3 5 ♭7 | E becomes F, C | 2 |
| DmMaj7 | 1 ♭3 5 7 | E becomes F, C♯ | 2 |
| D7sus4 | 1 4 5 ♭7 | E becomes G, C | 2 |
| D6 | 1 3 5 6 | E becomes F♯, B | 2 |
| Dm6 | 1 ♭3 5 6 | E becomes F, B | 2 |
| Ddim | 1 ♭3 ♭5 | E, A becomes F, A♭ | 1 |

## Set theory

- Absolute pitch classes: {2, 4, 9}
- Relative pitch classes: [0, 2, 7]
- Normal order: [2, 4, 9]
- Prime form: (027)
- Forte number: 3-9
- Interval vector: <010020>

## Frequencies (close root position)

| Note | MIDI | Frequency |
| --- | --- | --- |
| D3 | 50 | 146.83 Hz |
| E3 | 52 | 164.81 Hz |
| A3 | 57 | 220.00 Hz |

## Questions and answers

### What notes are in Dsus2?

Dsus2 contains D, E and A. The formula is 1, 2, 5.

### How do you play Dsus2 on piano?

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

### What are the inversions of Dsus2?

3 positions: root position D E A, Dsus2/E, Dsus2/A.

### What is the difference between Dsus2 and Dadd9?

Adds F♯. 3 of the notes are shared.

### What is an easy Dsus2 for small hands?

The root and third only voicing, D3 E3, spans 2 semitones or about 28 mm.

### What are the frequencies of Dsus2?

From D3 at A440 in 12-TET: 146.83, 164.81, 220.00 Hz.

### What is the set class of Dsus2?

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

### How do I transpose Dsus2 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:d
Last reviewed: 2026-08-12