Cadd9

C1E3G5D9

A major triad with a ninth added and no seventh — which is what tells it apart from a ninth chord.

on ukulele on piano the scale

Every fingering that fits a hand

Fig. 2

x30030

open

Fig. 3

x30010

open

Fig. 4

x30050

easy

Fig. 5

x32030

open

Fig. 6

x30053

easy

What is true of it

Cadd9 is C, E, G and D — 1, 3, 5 and 9 counted from C.

On an instrument that cannot reach all 4, the 5 goes first, in that order.

The easiest of the 5 fingerings below is x30030: 2 fingers, held at the 3rd fret.

3 of them use open strings, which is what makes a shape quiet to change to.

1 string stays silent.

Where its notes are on the neck

Fig. 7 — first 12 frets

The brass dots are C, the root. Everything else is a chord tone with its degree printed in it.

With a different note underneath

first inversion

Cadd9/E

030030

second inversion

Cadd9/G

330030

third inversion

Cadd9/D

xx0010

An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.

C in other shapes

C9dominant ninth Cmaj9major ninth Cm9minor ninth Cmajor Cmminor Cdimdiminished

C♯add9 D♭add9 Dadd9 D♯add9 E♭add9 Eadd9 Fadd9 F♯add9 all 374