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7th chords on guitar

7th chords in all 12 keys.

7th formula compared with nearby chord types

These A-rooted chords share their listed notes; each button plays the two chords in order.

A7 and A

A7: A · C# · E · G · formula 1 · 3 · 5 · b7

A: A · C# · E · formula 1 · 3 · 5

Shared notes: A, C#, E; Drops G.

A7 and Amaj7

A7: A · C# · E · G · formula 1 · 3 · 5 · b7

Amaj7: A · C# · E · G# · formula 1 · 3 · 5 · 7

Shared notes: A, C#, E; G changes to G#.

The intervals 1, 3, 5, and b7 give it a bluesy sound with tension.

6 of the 12 7th chords on guitar have an easy shape (no barre, three fingers or fewer, first four frets): E7, A7, G7, D7, F#7, Ab7.

Easiest to hardest

  1. E7
  2. A7
  3. G7
  4. D7
  5. F#7
  6. Ab7
  7. B7 (higher up the neck)
  8. C7 (higher up the neck)
  9. Bb7 (higher up the neck)
  10. C#7 (higher up the neck)
  11. Eb7 (higher up the neck)
  12. F7 (higher up the neck)

Other chord types: Major · Minor · Major 7th · Minor 7th · Sus2 · Sus4 · Add9 · Diminished · Augmented