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A Maj7b9 · Displayed in: A · Major 7 with flat 9 · Tones: A, C#, E, G#, Bb · Aliases: Maj7b9, M7b9, Δ7b9
A · Chord
A Maj7b9
A Maj7b9 · Displayed in: A · Major 7 with flat 9 · Tones: A, C#, E, G#, Bb · Aliases: Maj7b9, M7b9, Δ7b9
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Chord and Scale
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How to use this page
- Chord and Scale
- Tones: 5
- Relations
Example
A Maj7b9: A, C#, E, G#, Bb
A Maj7b9 · 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 Maj7b9
Public
Chord
• 1,1,3,3,4 • 5 tones
Chord and Scale
Matches
Description / Aliases
Major 7 with flat 9
Aliases
Maj7b9
M7b9
Δ7b9
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: 7
Degree: 4
MIDI: 68
Hz: 622.25
Relations
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Note: Bb
Interval: b9
Degree: 5
MIDI: 70
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
Mixed
Set: 0, 1, 2, 5, 8
Vector: [2, 1, 2, 2, 2, 1]
Score: -0.20
balanced
This set has 5 pitch classes, 3 close/tritone pressure points and 6 consonant-support intervals; average heuristic score: -0.20.
| Interval | Count | Weight | Contribution |
|---|---|---|---|
| m2 / M7 | 2 | -5 | -10 |
| M2 / m7 | 1 | -2 | -2 |
| m3 / M6 | 2 | +2 | +4 |
| M3 / m6 | 2 | +2 | +4 |
| P4 / P5 | 2 | +3 | +6 |
| Tritone | 1 | -4 | -4 |
Consonance graph
Bridge candidates
2363 candidates
| Target | Shared tones | Pivot | Voice-leading | Δ consonance | Bridge score |
|---|---|---|---|---|---|
|
A 7b9
Chord
Smooth pivot
|
Bb, C#, 9, 10 | Bb, C#, 9, 10 | 0.20 | 0.00 | 4.37 |
|
A Yematibela Web
Scale
Smooth pivot
|
Bb, C#, 9, 10 | Bb, C#, 9, 10 | 0.20 | 0.00 | 4.37 |
|
C# Ambassel Minor Alt
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
C# Hirajoshi
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
C# Hirajoshi Pentatonic
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
C# Pelog
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
C# Tizita Minor
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
Eb Iwato
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
Ab Anchihoye Minor
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
A Anchihoye Major
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
A Bati Major
Scale
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |
|
A Maj7#11
Chord
Smooth pivot
|
Bb, C#, 8, 9 | Bb, C#, 8, 9 | 0.20 | 0.10 | 4.23 |