The key of C sharp major has seven sharps. For reference, here are the notes in the C sharp major scale:
- C Sharp
- D Sharp
- E Sharp
- F Sharp
- G Sharp
- A Sharp
- B Sharp
All the chords in the key of C sharp major are made up of these seven notes, and each note gets to be the root note for one of the chords, thus making seven triad chords in this key.
- C Sharp Major
- D Sharp Minor
- E Sharp Minor
- F Sharp Major
- G Sharp Major
- A Sharp Minor
- B Sharp Diminished
Note: In this article I’m using banjo chord charts that I created using Microsoft Paint. Here are all the banjo chord charts that are free to use personally and commercially under Creative Commons Attribution (CC-BY) 4.0 License.
I Chord — C Sharp Major or C Sharp Major Seventh
The first chord (I) in the key of C sharp major is the C sharp major chord. Below is my preferred way to play the C sharp major chord on banjo.

The C sharp major seventh chord is the corresponding 7th chord for the I chord in the key of C sharp major. Below is my favorite way to play the C sharp major seventh chord.

ii Chord — D Sharp Minor or D Sharp Minor Seventh
The second chord (ii) in the key of C sharp major is the D sharp minor chord. Below is my preferred way to play the D sharp minor chord on banjo.

The D sharp minor seventh chord is the corresponding 7th chord for the ii chord in the key of C sharp major. Below is my favorite way to play the D sharp minor seventh chord.

iii Chord — E Sharp Minor or E Sharp Minor Seventh
The third chord (iii) in the key of C sharp major is the E sharp minor chord. Below is my preferred way to play the E sharp minor chord on banjo.

The E sharp minor seventh chord is the corresponding 7th chord for the iii chord in the key of C sharp major. Below is my favorite way to play the E sharp minor seventh chord.

IV Chord — F Sharp Major or F Sharp Major Seventh
The fourth chord (IV) in the key of C sharp major is the F sharp major chord. Below is my preferred way to play the F sharp major chord on banjo.

The F sharp major seventh chord is the corresponding 7th chord for the IV chord in the key of C sharp major. Below is my favorite way to play the F sharp major seventh chord.

V Chord — G Sharp Major or G Sharp Dominant Seventh
The fifth chord (V) in the key of C sharp major is the G sharp major chord. Below is my preferred way to play the G sharp major chord on banjo.

The G sharp dominant seventh chord is the corresponding 7th chord for the V chord in the key of C sharp major. Below is my favorite way to play the G sharp dominant seventh chord.

vi Chord — A Sharp Minor or A Sharp Minor Seventh
The sixth chord (vi) in the key of C sharp major is the A sharp minor chord. Below is my preferred way to play the A sharp minor chord on banjo.

The A sharp minor seventh chord is the corresponding 7th chord for the vi chord in the key of C sharp major. Below is my favorite way to play the A sharp minor seventh chord.

viidim Chord — B Sharp Diminished or B Sharp Minor Seventh Flat Five
The seventh chord (viidim) in the key of C sharp major is the B sharp diminished chord. Below is my preferred way to play the B sharp diminished chord on banjo.

The B sharp minor seventh flat five chord is the corresponding 7th chord for the viidim chord in the key of C sharp major. Below is my favorite way to play the B sharp minor seventh flat five chord.

Chord Progressions in the Key of C Sharp Major
Here are 10 chord progressions in the key of C Sharp Major that you can experiment with. I have included banjo tablature to make playing the chords easier for you.
1. C Sharp Major, F Sharp Major, G Sharp Major
D| --6---6-----11--11----1---1---
B| --6---6-----11--11----1---1---
G| --6---6-----11--11----1---1---
D| --6---6-----11--11----1---1---
G| ------------------------------
2. C Sharp Major, G Sharp Major, A Sharp Minor, F Sharp Major
D| --6---6-----1---1-----3---3-----11--11--
B| --6---6-----1---1-----2---2-----11--11--
G| --6---6-----1---1-----3---3-----11--11--
D| --6---6-----1---1-----3---3-----11--11--
G| ----------------------------------------
3. C Sharp Major, F Sharp Major, C Sharp Major, G Sharp Major
D| --6---6-----11--11----6---6-----1---1---
B| --6---6-----11--11----6---6-----1---1---
G| --6---6-----11--11----6---6-----1---1---
D| --6---6-----11--11----6---6-----1---1---
G| ----------------------------------------
4. C Sharp Major, E Sharp Minor, F Sharp Major, A Sharp Minor
D| --6---6-----10--10----11--11----3---3---
B| --6---6-----9---9-----11--11----2---2---
G| --6---6-----10--10----11--11----3---3---
D| --6---6-----10--10----11--11----3---3---
G| ----------------------------------------
5. A Sharp Minor, F Sharp Major, C Sharp Major, G Sharp Major
D| --3---3-----11--11----6---6-----1---1---
B| --2---2-----11--11----6---6-----1---1---
G| --3---3-----11--11----6---6-----1---1---
D| --3---3-----11--11----6---6-----1---1---
G| ----------------------------------------
6. F Sharp Major, C Sharp Major, G Sharp Major, C Sharp Major
D| --11--11----6---6-----1---1-----6---6---
B| --11--11----6---6-----1---1-----6---6---
G| --11--11----6---6-----1---1-----6---6---
D| --11--11----6---6-----1---1-----6---6---
G| ----------------------------------------
7. C Sharp Major, A Sharp Minor, F Sharp Major, G Sharp Major
D| --6---6-----3---3-----11--11----1---1---
B| --6---6-----2---2-----11--11----1---1---
G| --6---6-----3---3-----11--11----1---1---
D| --6---6-----3---3-----11--11----1---1---
G| ----------------------------------------
8. D Sharp Minor, G Sharp Major, C Sharp Major, A Sharp Minor
D| --8---8-----1---1-----6---6-----3---3---
B| --7---7-----1---1-----6---6-----2---2---
G| --8---8-----1---1-----6---6-----3---3---
D| --8---8-----1---1-----6---6-----3---3---
G| ----------------------------------------
9. C Sharp Major, F Sharp Major, A Sharp Minor, G Sharp Major
D| --6---6-----11--11----3---3-----1---1---
B| --6---6-----11--11----2---2-----1---1---
G| --6---6-----11--11----3---3-----1---1---
D| --6---6-----11--11----3---3-----1---1---
G| ----------------------------------------
10. C Sharp Major, D Sharp Minor, E Sharp Minor, F Sharp Major, G Sharp Major
D| --6---6-----8---8-----10--10----11--11----1---1---
B| --6---6-----7---7-----9---9-----11--11----1---1---
G| --6---6-----8---8-----10--10----11--11----1---1---
D| --6---6-----8---8-----10--10----11--11----1---1---
G| --------------------------------------------------
11. C Sharp Major, F Sharp Major, D Sharp Minor, G Sharp Major
D| --6---6-----11--11----8---8-----1---1---
B| --6---6-----11--11----7---7-----1---1---
G| --6---6-----11--11----8---8-----1---1---
D| --6---6-----11--11----8---8-----1---1---
G| ----------------------------------------
12. C Sharp Major, G Sharp Major, A Sharp Minor, E Sharp Minor, F Sharp Major, C Sharp Major, F Sharp Major, G Sharp Major
D| --6---6-----1---1-----3---3-----10--10----11--11----6---6-----11--11----1---1---
B| --6---6-----1---1-----2---2-----9---9-----11--11----6---6-----11--11----1---1---
G| --6---6-----1---1-----3---3-----10--10----11--11----6---6-----11--11----1---1---
D| --6---6-----1---1-----3---3-----10--10----11--11----6---6-----11--11----1---1---
G| --------------------------------------------------------------------------------