Bb7b9 Piano Chord

Bb7b9

Bb 7 Flat Nine

Root
Bb
3rd
D
Min 7th
Ab
b 9th
B
E
G
B
D
F
F
A
C
E
Bb
D
Ab
B

The Notes in a Bb 7 Flat Nine Chord

The Root

Finding Bb from Bb step by step:

  • Start on: Bb
  • Step 1: move down to A
  • Step 2: move down to Ab
  • Step 3: move down to G
  • Step 4: move down to Gb
  • Step 5: move down to F
  • Step 6: move down to E
  • Step 7: move down to Eb
  • Step 8: move down to D
  • Step 9: move down to Db
  • Step 10: move down to C
  • Step 11: move down to B
  • Step 12: Land on Bb
Root
Bb
Root
Bb
1
2
3
4
5
6
7
8
9
10
11
  • A is a minor second below Bb.
  • Ab is a major 2nd below Bb.
  • G is a minor third below Bb.
  • Gb is a major third below Bb.
  • F is a fourth below Bb.
  • E is a flat fifth below Bb.
  • Eb is a fifth below Bb.
  • D is a sharp fifth (minor sixth) below Bb.
  • Db is a major sixth below Bb.
  • C is a minor seventh below Bb.
  • B is a major seventh below Bb.
  • Bb is a octave below Bb. The root is down a octave? Confusing, right? The note Bb is down 12 half-steps from Bb, but up 0 half-steps from Bb:

The 3rd

Finding D from Bb step by step:

  • Start on: Bb
  • Step 1: move down to A
  • Step 2: move down to Ab
  • Step 3: move down to G
  • Step 4: move down to Gb
  • Step 5: move down to F
  • Step 6: move down to E
  • Step 7: move down to Eb
  • Step 8: Land on D
3rd
D
Root
Bb
1
2
3
4
5
6
7
  • A is a minor second below Bb.
  • Ab is a major 2nd below Bb.
  • G is a minor third below Bb.
  • Gb is a major third below Bb.
  • F is a fourth below Bb.
  • E is a flat fifth below Bb.
  • Eb is a fifth below Bb.
  • D is a sharp fifth (minor sixth) below Bb. The 3rd is down a sharp fifth (minor sixth)? Confusing, right? The note D is down 8 half-steps from Bb, but up 4 half-steps from Bb:
3rd
D
Root
Bb
1
2
3

The Min 7th

Finding Ab from Bb step by step:

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

The b 9th

Finding B from Bb step by step:

  • Start on: Bb
  • Step 1: Land on B
b 9th
B
Root
Bb
  • B is a minor second above Bb.