Chord · 13ths

Cm13 — C Minor 13th

Cm13 is the C minor 13th chord. It is built on the root C with minor 3rd (E♭), perfect 5th (G), minor 7th (B♭), major 9th (D) and major 13th (A) above it — the formula 1 ♭3 5 ♭7 9 13, sounding the notes C E♭ G B♭ D A. On the piano it sits at C (octave 4) and above in the library's voicing; the same 6 notes in any octave are still Cm13.

Root
C
Quality
Minor 13th
Formula
1 ♭3 5 ♭7 9 13
Notes
C E♭ G B♭ D A

On the keyboard

Cm13 on the piano keyboard: C E♭ G B♭ D ACE♭GB♭DA

The notes of Cm13

DegreeNoteInterval from the rootPitch
1CrootC4
♭3E♭minor 3rdE♭4
5Gperfect 5thG4
♭7B♭minor 7thB♭4
9Dmajor 9thD5
13Amajor 13thA5

Other 13ths on C

C13Cmaj13C13sus4C13♭5

Minor 13th chords on every root

C♯m13Dm13E♭m13Em13Fm13F♯m13Gm13G♯m13Am13B♭m13Bm13

Part of the chord reference. See also the scales and the keys.