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A 9 · Displayed in: A · Dominant ninth chord · Tones: A, C#, E, G, B · Aliases: 9, Dom9
A · Chord
A 9
A 9 · Displayed in: A · Dominant ninth chord · Tones: A, C#, E, G, B · Aliases: 9, Dom9
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Chord and Scale
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Type key + scale (e.g. C Major, F Dorian)
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How to use this page
- Chord and Scale
- Tones: 5
- Relations
Example
A 9: A, C#, E, G, B
A 9 · Chord · A · 5 Tones
Network of this chord or scale with contain / contained-in relations.
Type key + scale (e.g. C Major, F Dorian)
A 9
Public
Chord
• 2,2,2,3,3 • 5 tones
Chord and Scale
Matches
Description / Aliases
Dominant ninth chord
Aliases
9
Dom9
Generic fingering match
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Tones
Selected relation
Current
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Note: A
Interval: 1
Degree: 1
MIDI: 57
Hz: 698.46
Relations
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Note: C#
Interval: 3
Degree: 2
MIDI: 61
Hz: 415.31
Relations
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Note: E
Interval: 5
Degree: 3
MIDI: 64
Hz: 523.25
Relations
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Note: G
Interval: b7
Degree: 4
MIDI: 67
Hz: 622.25
Relations
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Note: B
Interval: 9
Degree: 5
MIDI: 71
Hz: 783.99
Relations
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Relations
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Network of this chord or scale with contain / contained-in relations.
Consonance heuristic
Mildly consonant
Set: 0, 2, 4, 6, 9
Vector: [0, 3, 2, 2, 2, 1]
Score: 0.40
open / fifth-supported
This set has 5 pitch classes, 1 close/tritone pressure points and 6 consonant-support intervals; average heuristic score: 0.40.
| Interval | Count | Weight | Contribution |
|---|---|---|---|
| m2 / M7 | 0 | -5 | 0 |
| M2 / m7 | 3 | -2 | -6 |
| m3 / M6 | 2 | +2 | +4 |
| M3 / m6 | 2 | +2 | +4 |
| P4 / P5 | 2 | +3 | +6 |
| Tritone | 1 | -4 | -4 |
Consonance graph
Bridge candidates
2362 candidates
| Target | Shared tones | Pivot | Voice-leading | Δ consonance | Bridge score |
|---|---|---|---|---|---|
|
E Minor Hexatonic
Scale
Smooth pivot
|
1, C#, E, 9, 11 | 1, C#, E, 9 | 0.08 | 0.07 | 4.46 |
|
A 11
Chord
Smooth pivot
|
1, C#, E, 9, 11 | 1, C#, E, 9 | 0.08 | 0.07 | 4.46 |
|
A 13
Chord
Smooth pivot
|
1, C#, E, 9, 11 | 1, C#, E, 9 | 0.08 | 0.07 | 4.46 |
|
A 13sus2
Chord
Smooth pivot
|
C#, E, 9, 11 | C#, E, 9, 11 | 0.30 | 0.00 | 4.32 |
|
C# m7b5
Chord
Smooth pivot
|
1, C#, E, 11 | 1, C#, E, 11 | 0.20 | 0.10 | 4.23 |
|
E m6
Chord
Smooth pivot
|
1, C#, E, 11 | 1, C#, E, 11 | 0.20 | 0.10 | 4.23 |
|
E mAdd13
Chord
Smooth pivot
|
1, C#, E, 11 | 1, C#, E, 11 | 0.20 | 0.10 | 4.23 |
|
G 6b5
Chord
Smooth pivot
|
1, C#, E, 11 | 1, C#, E, 11 | 0.20 | 0.10 | 4.23 |
|
A 7
Chord
Smooth pivot
|
1, C#, E, 9 | 1, C#, E, 9 | 0.20 | 0.10 | 4.23 |
|
A 7#9
Chord
Smooth pivot
|
1, C#, E, 9 | 1, C#, E, 9 | 0.20 | 0.10 | 4.23 |
|
E Kumoi Pentatonic
Scale
Smooth pivot
|
1, C#, E, 11 | 1, C#, E, 11 | 0.30 | 0.20 | 4.05 |
|
E m6/9
Chord
Smooth pivot
|
1, C#, E, 11 | 1, C#, E, 11 | 0.30 | 0.20 | 4.05 |