Arpeggio quality
6/9
The 6/9 chord stacks a major sixth and a major ninth on top of the major triad, and omits the seventh entirely. The result is lush, sophisticated and completely settled — a favourite ending chord in bossa nova, soul and jazz ballads. Because the ninth is the second degree an octave up, the whole quality fits neatly under the fingers in one position, which is why it is often the first five-note arpeggio players learn. There is no tritone and no leading tone, so it never demands resolution. Listen for the bell-like top note: the ninth is what turns a plain major chord into a colour.
- Formula
- 1 3 5 6 9
- Notes
- C♯ E♯ G♯ A♯ D♯
- Family
- Major
Notation in C♯
representative keyFretboard — frets 0–12
All 17 keys
open a key →Same family
How to practise this arpeggio
- Play all five notes slowly, listening for the ninth as the top voice.
- Comp the chord in one position, then move it through a ii–V–I as a tonic sound.
- Drop the fifth and hear how the sixth and ninth still define the quality.
- Improvise over a bossa nova groove using only the 6/9 tones.