C# Minor 13th

Notes:C# – E – G# – B – D# – F# – A#
Formula:R-m3-P5-m7-M9-P11-M13
Intervals:P1-m3-P5-m7-M9-P11-M13
Scale Degrees:1-b3-5-b7-9-11-13

Introduction

The C# Minor 13th piano chord (C#m13) consists of the notes C#, E, G#, B, D#, F#, A#. It is a minor 11th chord with an added major 13th, giving it a dark and sophisticated character often used in jazz ballads and modal jazz. Formula: R-m3-P5-m7-M9-P11-M13 | Scale degrees: 1-b3-5-b7-9-11-13.

Enharmonic equivalent: C♯ is enharmonically equivalent to D♭. See Db Minor 13th.

Notes

Notes:C# – E – G# – B – D# – F# – A#

C# Minor 13th Inversions

PositionNotes
Root PositionC#4 – E4 – G#4 – B4 – A#5 – D#5 – F#5
1st InversionE4 – G#4 – B4 – C#5 – A#5 – D#5 – F#5
2nd InversionG#4 – B4 – C#5 – D#5 – E5 – A#5 – F#5

Key Signature

The key of C# Minor 13th has 4 sharps: F♯, C♯, G♯, D♯.

F♯C♯G♯D♯

Theory: Intervals

Formula: R-m3-P5-m7-M9-P11-M13
Intervals: P1-m3-P5-m7-M9-P11-M13

The C# Minor 13th is built by stacking intervals from the root note. The formula R-m3-P5-m7-M9-P11-M13 describes the scale degrees used. The intervals P1-m3-P5-m7-M9-P11-M13 show the distance between each note in the chord.

C# Minor 13th — Frequently Asked Questions

What notes are in the C# Minor 13th chord?

C# Minor 13th is built from the C# root. Check the interactive keyboard above for exact notes and fingering.

How is the C# Minor 13th chord used in music?

C# Minor 13th appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Minor 13th).

What is the fingering for C# Minor 13th?

See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.

What are the inversions of C# Minor 13th?

Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.

Practice Tips

  • The fullest extended chord — includes the 13th.
  • Drop the 11th and sometimes the 5th.
  • Rich, complex jazz sound.
  • Compare with the 9th version.
  • Jazz big band voicing.
  • The 13th adds warmth on top.