C♯ Major 7th
Also Known As
Hear the C♯ Major 7th chord played for you.
C♯maj7
C♯ – F – G♯ – C
Formula:R-M3-P5-M7
Intervals:P1-M3-P5-M7
Scale Degrees:1-3-5-7
Introduction
The C♯ Major 7th chord is a four-note chord made up of C♯, F, G♯, and C. It is built from a root, major third, perfect fifth, and major seventh.
The C# Major 7th piano chord (C#maj7) consists of the notes C#, F, G#, C. It is a major triad with an added major 7th, giving it a dreamy, sophisticated, and jazzy sound. Formula: R-M3-P5-M7 | Scale degrees: 1-3-5-7.
Notes
C♯ Major 7th Inversions
| Position | Notes |
|---|---|
| Root Position | C#4 – F4 – G#4 – C5 |
| 1st Inversion | F4 – G#4 – C5 – C#5 |
| 2nd Inversion | G#4 – C5 – C#5 – F5 |
| 3rd Inversion | C#4 – F4 – G#4 – C4 |
Key Signature
The key of C# Major 7th has 7 sharps.
F♯C♯G♯D♯A♯E♯B♯
Order of sharps
Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.
F♯C♯G♯D♯A♯E♯B♯
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of C# Major
These are the diatonic triads built on each degree of the C# major scale:
C
D
E
F
G
A
B
C
D
E
F
G
A
B
I — C♯ Major (major)
Theory: Intervals
Formula: R-M3-P5-M7
Intervals: P1-M3-P5-M7
The C♯ Major 7th is built by stacking intervals from the root note. The formula R-M3-P5-M7 describes the scale degrees used. The intervals P1-M3-P5-M7 show the distance between each note in the chord.
C♯ Major 7th — Frequently Asked Questions
What notes are in the C# Major 7th chord?
C# Major 7th is built from the C# root. Check the interactive keyboard above for exact notes and fingering.
How is the C# Major 7th chord used in music?
C# Major 7th appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Major 7th).
What is the fingering for C# Major 7th?
See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.
What are the inversions of C# Major 7th?
Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.
Practice Tips
- Dreamy, warm, sophisticated sound.
- Compare with C#7 (dominant).
- Jazz ballad tonic chord.
- Bossa nova favourite.
- The major 7th creates a floating quality.
- Try as a resting chord after tension.
Related Tools
Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.