The key of C minor has three flats. For reference, here are the notes in the C minor scale:
- C
- D
- E Flat
- F
- G
- A Flat
- B Flat
All the chords in the key of C minor 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 Minor
- D Diminished
- E Flat Major
- F Minor
- G Minor
- A Flat Major
- B Flat Major
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 Minor or C Minor Seventh
The first chord (i) in the key of C minor is the C minor chord. Below is my preferred way to play the C minor chord on banjo.

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

iidim Chord — D Diminished or D Minor Seventh Flat Five
The second chord (iidim) in the key of C minor is the D diminished chord. Below is my preferred way to play the D diminished chord on banjo.

The D minor seventh flat five chord is the corresponding 7th chord for the iidim chord in the key of C minor. Below is my favorite way to play the D minor seventh flat five chord.

III Chord — E Flat Major or E Flat Major Seventh
The third chord (III) in the key of C minor is the E flat major chord. Below is my preferred way to play the E flat major chord on banjo.

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

iv Chord — F Minor or F Minor Seventh
The fourth chord (iv) in the key of C minor is the F minor chord. Below is my preferred way to play the F minor chord on banjo.

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

v Chord — G Minor or G Minor Seventh
The fifth chord (v) in the key of C minor is the G minor chord. Below is my preferred way to play the G minor chord on banjo.

The G minor seventh chord is the corresponding 7th chord for the v chord in the key of C minor. Below is my favorite way to play the G minor seventh chord.

VI Chord — A Flat Major or A Flat Major Seventh
The sixth chord (VI) in the key of C minor is the A flat major chord. Below is my preferred way to play the A flat major chord on banjo.

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

VII Chord — B Flat Major or B Flat Dominant Seventh
The seventh chord (VII) in the key of C minor is the B flat major chord. Below is my preferred way to play the B flat major chord on banjo.

The B flat dominant seventh chord is the corresponding 7th chord for the VII chord in the key of C minor. Below is my favorite way to play the B flat dominant seventh chord.

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