What notes are in the D9 chord?

D9 is made of D, F#, C and E: the root, major 3rd, minor 7th and major 2nd above D.

What is the easiest way to play D9?

Play x52532 (low E to high E): mute the low E string, barre fret 2 from the D to the high E string.

D9 chord on guitar

D9 is a dominant ninth chord: funky and full. It is built from D, F#, C and E (formula 1 3 ♭7 9). Dominant ninths are the classic funk and soul rhythm chord, and a richer swap for a plain seventh. The easiest way to play it in standard tuning is x52532.

x 5 2 5 3 2

10 7 10 7 7 10

x x 12 11 13 12

D9 fingerings (low E to high E)

Barre at fret 2: x52532. Mute the low E string, barre fret 2 from the D to the high E string.
Barre at fret 7: 10-7-10-7-7-10. Barre fret 7 from the A to the B string.
Fret 11: x-x-12-11-13-12. Mute the low E and A strings.

Questions

What notes are in the D9 chord?: D9 is made of D, F#, C and E: the root, major 3rd, minor 7th and major 2nd above D.
What is the easiest way to play D9?: Play x52532 (low E to high E): mute the low E string, barre fret 2 from the D to the high E string.

Also try: D Major · D Minor · D7 · Dmaj7 · Chord Charts