A7
A dominant seventh
Notes
A – C♯ – E – G
Formula
1 – 3 – 5 – ♭7
A major triad with a minor seventh, creating tension that wants to resolve.
To build A7, start on A and stack the intervals 3, 5, ♭7 above it.
On piano
On guitar
Shapes generated and checked against the chord engine, standard tuning.
x–0–2–0–2–0Open in Explorer
OOpen
Fret 2
OOpen
Fret 2
OOpen
✕Muted
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5–4–5–0–5–0Open in Explorer
OOpen
Fret 5
OOpen
Fret 5
Fret 4
Fret 5
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x–0–5–6–5–3Open in Explorer
Fret 3
Fret 5
Fret 6
Fret 5
OOpen
✕Muted
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