The dominant 7th adds a flat 7th to a major triad (1–3–5–♭7). Bluesy and unresolved, it drives blues, funk, and the V chord in nearly every key.
NotesE · G♯ · B · D
Formula1 · 3 · 5 · ♭7
Every dominant 7th 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.
