Arpeggio · D△9 · Piano
The D△9 arpeggio is D – F♯ – A – C♯ – E — chord tones 1 3 5 7 9. D△9 is a lush tonic chord in ballads; its sound is wide, luminous. Below, every D, F♯, A, C♯, E on the two-octave keyboard is marked, with the root in gold. Press play to hear a one-octave arpeggio, or tap any note.
Visualizer
Piano
Guitar · standard tuning
Play runs the arpeggio up and down one octave. Tap any marked note to hear it. “Show” switches or combines the fretboard and keyboard; “Sound” picks the instrument you hear. Audio is synthesized in the browser.
Reference
| Chord tone | Note | Interval from D |
|---|---|---|
| 1 | D | unison (0 semitones) |
| 3 | F♯ | major 3rd (4 semitones) |
| 5 | A | perfect 5th (7 semitones) |
| 7 | C♯ | major 7th (11 semitones) |
| 9 | E | major 2nd + octave (14 semitones) |
Goes with: D Major (Ionian) (D E F♯ G A B C♯). Voicings: see the four-note chord voicings in the chord library.
Common questions
D – F♯ – A – C♯ – E. As chord tones: 1 3 5 7 9. Played one after another instead of together, that is the arpeggio.
D△9 is a lush tonic chord in ballads. Its character is wide, luminous.
D Major (D E F♯ G A B C♯) — the arpeggio is the skeleton of that scale, so practise them together.
Play D – F♯ – A – C♯ – E ascending from D, then descend; then start from each chord tone in turn (inversions) so your hand knows the shape from any note.
Keep going
Same arpeggio on guitar · Major 9th hub · chord-scale theory.
Other arpeggios from D