Chord · 6ths & Adds

Aadd11 — A Added 11th

Aadd11 is the A added 11th chord. It is built on the root A with major 3rd (C♯), perfect 5th (E) and perfect 11th (D) above it — the formula 1 3 5 11, sounding the notes A C♯ E D. On the piano it sits at A (octave 3) and above in the library's voicing; the same 4 notes in any octave are still Aadd11.

Root
A
Quality
Added 11th
Formula
1 3 5 11
Notes
A C♯ E D

On the keyboard

Aadd11 on the piano keyboard: A C♯ E DAC♯ED

The notes of Aadd11

DegreeNoteInterval from the rootPitch
1ArootA3
3C♯major 3rdC♯4
5Eperfect 5thE4
11Dperfect 11thD5

Other 6ths & adds on A

A6Am6A6/9Am6/9Aadd2Aadd4Aadd9Am(add9)Am(add11)

Added 11th chords on every root

Cadd11D♭add11Dadd11E♭add11Eadd11Fadd11F♯add11Gadd11A♭add11B♭add11Badd11

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