C# 13sus4
Notes:C# – F# – G# – B – D# – A#
Formula:R-P4-P5-m7-M9-M13
Intervals:P1-P4-P5-m7-M9-M13
Scale Degrees:1-4-5-b7-9-13
Introduction
The C# 13sus4 piano chord (C#13sus4) consists of the notes C#, F#, G#, B, D#, A#. Formula: R-P4-P5-m7-M9-M13 | Scale degrees: 1-4-5-b7-9-13.
Enharmonic equivalent: C♯ is enharmonically equivalent to D♭. See Db 13sus4.
Notes
C# 13sus4 Inversions
| Position | Notes |
|---|---|
| Root Position | C#4 – F#4 – G#4 – B4 – A#5 – D#5 |
| 1st Inversion | F#4 – G#4 – B4 – D#5 – A#5 – C#6 |
| 2nd Inversion | G#4 – B4 – D#5 – A#5 – C#6 – F#6 |
Key Signature
The key of C# 13sus4 has 7 sharps: F♯, C♯, G♯, D♯, A♯, E♯, B♯.
F♯C♯G♯D♯A♯E♯B♯
Theory: Intervals
Formula: R-P4-P5-m7-M9-M13
Intervals: P1-P4-P5-m7-M9-M13
The C# 13sus4 is built by stacking intervals from the root note. The formula R-P4-P5-m7-M9-M13 describes the scale degrees used. The intervals P1-P4-P5-m7-M9-M13 show the distance between each note in the chord.
C# 13sus4 — Frequently Asked Questions
What notes are in the C# 13sus4 chord?
The C# 13sus4 chord (C#13sus4) contains 6 notes: C#, F#, G#, B, D#, A#. Formula: R-P4-P5-m7-M9-M13.
How is C#13sus4 used in music?
C#13sus4 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for C#13sus4?
C#13sus4 uses scale degrees 1-4-5-b7-9-13, giving it its distinctive sound.
Practice Tips
- Start by placing your thumb on C# and spacing remaining fingers across the chord.
- Practice C#13sus4 slowly with separate hands before combining.
- Listen carefully to the tension created by the altered tones in this chord.
- Try voicing C#13sus4 in different octaves to find the most comfortable position.
- Resolve C#13sus4 to a nearby chord to hear its function in context.