Add9 chords
An added ninth chord has four notes: the root, major third, perfect fifth and major second. Its formula is 1 3 5 9. A major chord with the 9th added and no 7th. A 9 chord has the flat 7th as well, so Cadd9 and C9 are different chords.
On C it is written Cadd9, and also Cadd2.
Add9 chords in every key
| Chord | Notes | Shapes |
|---|---|---|
| Cadd9 | C E G D | guitar · piano |
| Dbadd9 | Db F Ab Eb | guitar · piano |
| Dadd9 | D F# A E | guitar · piano |
| Ebadd9 | Eb G Bb F | guitar · piano |
| Eadd9 | E G# B F# | guitar · piano |
| Fadd9 | F A C G | guitar · piano |
| F#add9 | F# A# C# G# | guitar · piano |
| Gadd9 | G B D A | guitar · piano |
| Abadd9 | Ab C Eb Bb | guitar · piano |
| Aadd9 | A C# E B | guitar · piano |
| Bbadd9 | Bb D F C | guitar · piano |
| Badd9 | B D# F# C# | guitar · piano |
Add9 compared
| Chord | Symbol | Formula | Notes | Difference |
|---|---|---|---|---|
| Add9 | Cadd9 | 1 3 5 9 | C E G D | |
| Dominant 9 | C9 | 1 3 5 b7 9 | C E G Bb D | C9 is Cadd9 (C, E, G and D) with Bb, the flat 7th, added. |
| Sus2 | Csus2 | 1 2 5 | C D G | Csus2 is Cadd9 (C, E, G and D) without E, the 3rd. |
| Major | C | 1 3 5 | C E G | C is Cadd9 (C, E, G and D) without D, the 9th. |
Questions
What is a added ninth chord?
An added ninth chord has four notes: the root, major third, perfect fifth and major second. Its formula is 1 3 5 9. A major chord with the 9th added and no 7th. A 9 chord has the flat 7th as well, so Cadd9 and C9 are different chords.
How do you write a added ninth chord?
On C it is written Cadd9, and also Cadd2.
What is the difference between Cadd9 and C9?
Cadd9 is C9 (C, E, G, Bb and D) without Bb, the flat 7th.