C♯m9

C♯1E♭3G♯5B♭7D♯9

A minor seventh with a ninth on top.

Written the other way round it is D♭m9 — the same twelve keys on a piano, a different piece of notation.

on ukulele on piano the scale

Every fingering that fits a hand

Fig. 2

x41100

easy

Fig. 3

x41400

easy · no 5

Fig. 4

x46440

moderate · barre

Fig. 5

x42440

hard · no 5

Fig. 6

x41420

hard · no 5

What is true of it

C♯m9 is C♯, E, G♯, B and D♯ — 1, b3, 5, b7 and 9 counted from C♯.

On an instrument that cannot reach all 5, the 5 and 1 go first, in that order.

The easiest of the 5 fingerings below is x41100: 3 fingers, held at the 1st fret.

None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.

1 of the 5 need a barre.

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

C♯m9/E

021100

second inversion

C♯m9/G♯

441100

third inversion

C♯m9/B

x21100

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

C♯add9added ninth C♯9dominant ninth C♯maj9major ninth C♯major C♯mminor C♯dimdiminished

Cm9 Dm9 D♯m9 E♭m9 Em9 Fm9 F♯m9 G♭m9 all 374