The major 9th extends a major 7th with the 9th (1–3–5–7–9). Rich and open, it is a go-to lush voicing in jazz, soul, and R&B.
NotesE · F♯ · G♯ · B · D♯
Formula1 · 9 · 3 · 5 · 7
Every major 9th chord tone across the neck. Solo with these and you spell the chord — that's the difference between running a scale and playing the changes.