About the B flat minor flat six chord
The B flat minor flat six chord is a B flat minor flat six built from B flat, D flat, F, G flat. You will most often meet it as the I chord in G flat Major.
It is also written A sharp minor flat six , which spells the same notes enharmonically.
Positions
(root position)
Notes and intervals
| 1 | B flat | Root |
| 2 | D flat | Minor 3rd |
| 3 | F | Perfect 5th |
| 4 | G flat | Minor 6th |
Shapes
Chromatic
Circle of Fifths
Keys that use B flat minor flat six
B flat minor flat six is diatonic to these keys, where it acts as the chord shown.
Other B flat chords
Simpler triads
Suspended
Sixths and sevenths
Extensions
Altered
Functional relationships
These chords are where this one most naturally comes from and resolves to inside a key.
Relative major
The relative major uses the same notes and key signature, so it works as a brighter home base.
Parallel major
The parallel major keeps the same root note but raises the third, giving the same key a brighter, happier sound.
Dominant
The dominant is a fifth above the root, and it builds tension that pulls strongly back to this chord.
Subdominant
The subdominant is a fourth above the root (a fifth below), and it usually leads on to the dominant or back home.
Tritone substitution
The tritone substitution stands in for this chord's dominant with a dominant seventh a half step above the root, which slides down by a half step to resolve here.
