What you are learning
C# 9#11 · Displayed in: C# · Ninth chord with sharp eleventh · Tones: C#, E#, G#, B, D#, F## · Aliases: 9#11
C# · Chord
C# 9#11
C# 9#11 · Displayed in: C# · Ninth chord with sharp eleventh · Tones: C#, E#, G#, B, D#, F## · Aliases: 9#11
Guided start
Start with a clear learning action
Try first
Chord and Scale
Next step
Type key + scale (e.g. C Major, F Dorian)
Open support for C# 9#11
How to use this page
- Chord and Scale
- Tones: 6
- Relations
Example
C# 9#11: C#, E#, G#, B, D#, F##
C# 9#11 · Chord · C# · 6 Tones
Network of this chord or scale with contain / contained-in relations.
Type key + scale (e.g. C Major, F Dorian)
C# 9#11
Public
Chord
• 1,3,2,2,2,2 • 6 tones
Chord and Scale
Matches
Description / Aliases
Ninth chord with sharp eleventh
Aliases
9#11
Generic fingering match
Select instrument and keyscale to scan all generics.
No catalog scan has run yet.
Tones
Selected relation
Current
Select a relation to inspect its playback controls and tone metadata.
Note: C#
Interval: 1
Degree: 1
MIDI: 49
Hz: 415.31
Relations
Loading related chords and scales...
Note: E#
Interval: 3
Degree: 2
MIDI: 53
Hz: 523.25
Relations
Loading related chords and scales...
Note: G#
Interval: 5
Degree: 3
MIDI: 56
Hz: 622.25
Relations
Loading related chords and scales...
Note: B
Interval: b7
Degree: 4
MIDI: 59
Hz: 783.99
Relations
Loading related chords and scales...
Note: D#
Interval: 9
Degree: 5
MIDI: 63
Hz: 466.16
Relations
Loading related chords and scales...
Note: F##
Interval: #11
Degree: 6
MIDI: 67
Hz: 554.37
Relations
Loading related chords and scales...
Relations
Loading...
Network of this chord or scale with contain / contained-in relations.
Consonance heuristic
Mixed
Set: 0, 1, 3, 5, 7, 9
Vector: [1, 4, 2, 4, 2, 2]
Score: -0.20
balanced
This set has 6 pitch classes, 3 close/tritone pressure points and 8 consonant-support intervals; average heuristic score: -0.20.
| Interval | Count | Weight | Contribution |
|---|---|---|---|
| m2 / M7 | 1 | -5 | -5 |
| M2 / m7 | 4 | -2 | -8 |
| m3 / M6 | 2 | +2 | +4 |
| M3 / m6 | 4 | +2 | +8 |
| P4 / P5 | 2 | +3 | +6 |
| Tritone | 2 | -4 | -8 |
Consonance graph
Bridge candidates
2363 candidates
| Target | Shared tones | Pivot | Voice-leading | Δ consonance | Bridge score |
|---|---|---|---|---|---|
|
C Neapolitan Minor
Scale
Smooth pivot
|
1, 3, 5, G#, 8, 11 | 1, 3, 5, G# | 0.07 | 0.06 | 4.57 |
|
F Gypsy Minor
Scale
Smooth pivot
|
1, 3, 5, G#, 8, 11 | 1, 3, 5, G# | 0.07 | 0.06 | 4.57 |
|
C# 13b5
Chord
Smooth pivot
|
1, 3, 5, G#, 11 | 1, 3, 5, G# | 0.17 | 0.00 | 4.51 |
|
C# 9b13
Chord
Smooth pivot
|
1, 3, 5, 8, 11 | 1, 3, 5, 8 | 0.17 | 0.00 | 4.51 |
|
C# Prometheus
Scale
Smooth pivot
|
1, 3, 5, G#, 11 | 1, 3, 5, G# | 0.17 | 0.00 | 4.51 |
|
Eb 9b13
Chord
Smooth pivot
|
1, 3, 5, G#, 11 | 1, 3, 5, G# | 0.17 | 0.00 | 4.51 |
|
F 7alt
Chord
Smooth pivot
|
1, 3, 5, 8, 11 | 1, 3, 5, 8 | 0.17 | 0.00 | 4.51 |
|
G 7alt
Chord
Smooth pivot
|
1, 3, 5, G#, 11 | 1, 3, 5, G# | 0.17 | 0.00 | 4.51 |
|
B 13b5
Chord
Smooth pivot
|
1, 3, 5, 8, 11 | 1, 3, 5, 8 | 0.17 | 0.00 | 4.51 |
|
B Prometheus
Scale
Smooth pivot
|
1, 3, 5, 8, 11 | 1, 3, 5, 8 | 0.17 | 0.00 | 4.51 |
|
C# 7#9#11
Chord
Smooth pivot
|
1, 5, G#, 8, 11 | 1, 5, G#, 8 | 0.17 | 0.07 | 4.42 |
|
G 7b9b13
Chord
Smooth pivot
|
3, 5, G#, 8, 11 | 3, 5, G#, 8 | 0.17 | 0.07 | 4.42 |