Bb Altered Scale
4-string bass · Mode VII mel. · 7 notes · minor family
Notes
B♭
C♭
D♭
D
F♭
G♭
A♭
Solfège : Si♭ – Do♭ – Ré♭ – Ré – Fa♭ – Sol♭ – La♭
Interval Structure
B♭
½T
C♭
T
D♭
½T
D
T
F♭
T
G♭
T
A♭
→
B♭+oct.
T
Scale Chords (triads)
| Degree | Chord (in Bb) | Quality |
|---|---|---|
| i° | B♭° | diminished |
| ii | C♭m | minor |
| iii | D♭m | minor |
| IV+ | D+ | augmented |
| V | F♭ | Major |
| VI | G♭ | Major |
| vii° | A♭° | diminished |
About this scale
The altered scale (mode VII of the melodic minor, or superlocrian) contains all altered tensions: b9, #9, b5, #5. It is the ultimate scale for V7alt→I resolutions in jazz. Bassists use it to create maximum tension before the resolution.
See fretboard positions, piano and arpeggios for Bb Altered in the interactive app.
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