Chord · 6ths & Adds

Cm6/9/11 — C Minor 6/9 / 11th

Cm6/9/11 is the C minor 6/9 / 11th chord. It is built on the root C with minor 3rd (E♭), perfect 5th (G), major 6th (A), major 9th (D) and perfect 11th (F) above it — the formula 1 ♭3 5 6 9 11, sounding the notes C E♭ G A D F. 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 Cm6/9/11.

Root
C
Quality
Minor 6/9 / 11th
Formula
1 ♭3 5 6 9 11
Notes
C E♭ G A D F

On the keyboard

Cm6/9/11 on the piano keyboard: C E♭ G A D FCE♭GADF

The notes of Cm6/9/11

DegreeNoteInterval from the rootPitch
1CrootC4
♭3E♭minor 3rdE♭4
5Gperfect 5thG4
6Amajor 6thA4
9Dmajor 9thD5
11Fperfect 11thF5

Other 6ths & adds on C

C6Cm6C6/9Cm6/9Cadd2Cadd4Cadd9Cadd11Cadd♯11C6sus4Cm(add9)Cm(add11)C6/9♯11Cadd9♯11Cm6/7Cm6/9/7Cm6/11Cm6♯11Cm6/9♯11

Minor 6/9 / 11th chords on every root

C♯m6/9/11Dm6/9/11E♭m6/9/11Em6/9/11Fm6/9/11F♯m6/9/11Gm6/9/11G♯m6/9/11Am6/9/11B♭m6/9/11Bm6/9/11

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