A7 Piano Chord

A7

A Dominant 7th (with 5th)

Root
A
3rd
C#
5th
E
Min 7th
G
E
G
B
D
F
F
A
C
E
A
C#
E
G

The Notes in a A Dominant 7th (with 5th) Chord

The 3rd

Finding C# from A step by step:

  • Start on: A
  • Step 1: move up to Bb
  • Step 2: move up to B
  • Step 3: move up to C
  • Step 4: Land on C#
3rd
C#
Root
A
1
2
3
  • Bb is a minor second above A.
  • B is a major 2nd above A.
  • C is a minor third above A.
  • C# is a major third above A.

The 5th

Finding E from A step by step:

  • Start on: A
  • Step 1: move up to Bb
  • Step 2: move up to B
  • Step 3: move up to C
  • Step 4: move up to C#
  • Step 5: move up to D
  • Step 6: move up to Eb
  • Step 7: Land on E
5th
E
Root
A
1
2
3
4
5
6
  • Bb is a minor second above A.
  • B is a major 2nd above A.
  • C is a minor third above A.
  • C# is a major third above A.
  • D is a fourth above A.
  • Eb is a flat fifth above A.
  • E is a fifth above A.

The Min 7th

Finding G from A step by step:

  • Start on: A
  • Step 1: move down to G#
  • Step 2: Land on G
Min 7th
G
Root
A
1
  • G# is a minor second below A.
  • G is a major 2nd below A. The min 7th is down a major 2nd? Confusing, right? The note G is down 2 half-steps from A, but up 10 half-steps from A:
Min 7th
G
Root
A
1
2
3
4
5
6
7
8
9