The dominant 7 arpeggio adds the ♭7 to a major triad, spelling the restless, blues-driving dominant chord note by note.
The dominant 7 arpeggio adds the ♭7 to a major triad, spelling the restless, blues-driving dominant chord note by note. On guitar, the eb dominant 7 arpeggio uses the notes E♭, G, B♭, D♭ — the diagram above shows every one of them across all positions of the neck, with the root (Eb) highlighted so you can anchor each shape.
KnowYourNeck turns this into an interactive neck you can rotate through every position, switch between note names and scale degrees, and drill one box at a time with Focus Mode. It's the fastest way to actually learn the dominant 7 arpeggio instead of just reading a chart.