Bbadd9 — Bb added ninth chord
A major triad with the ninth added and no seventh, so the triad is unaltered.
- 1 = Bb
- 9 = C
- 3 = D
- 5 = F
- Symbol
- Bbadd9
- Root
- Bb
- Quality
- Added ninth
- Family
- added
- Notes
- Bb C D F
- Degree formula
1 9 3 5- Semitones from the root
0 2 4 7- Distinct pitch classes
- 4
- Interval structure
- Stacked from the root: 2 semitones, 2 semitones, 3 semitones
- Notation
- Written add9. Frequently used where a plain major triad would sound too bare, and common in pop and fingerstyle arrangements.
- Key
- Bb · Bb major / G minor key signature
Formula
The chord tones in order from the root, with the interval each one forms above it.
| Degree | Note | Semitones | Interval from the root |
|---|---|---|---|
| 1 | Bb | 0 | Perfect unison |
| 9 | C | 2 | Major second |
| 3 | D | 4 | Major third |
| 5 | F | 7 | Perfect fifth |
Inversions
An inversion is the same set of notes with a different one in the bass. The last column gives the distance of each note above the bass note, in semitones.
| Inversion | Bass note | Degree in the bass | Notes above the bass | Semitones above the bass |
|---|---|---|---|---|
| root position | Bb | 1 | Bb – C – D – F | 0 2 4 7 |
| first inversion | C | 9 | C – D – F – Bb | 0 2 5 10 |
| second inversion | D | 3 | D – F – Bb – C | 0 3 8 10 |
| third inversion | F | 5 | F – Bb – C – D | 0 5 7 9 |
Playable voicings
These shapes were found by searching the fretboard of a standard-tuned guitar (E A D G B E) rather than copied from a chord book. The search allows every string to sound or to be muted, rejects any shape with a muted string between two sounding strings, rejects any shape whose fretted notes span more than four frets (a five-fret window), requires every chord tone to be present, and then sorts what remains with root-position shapes first and the most compact, lowest shapes next. The shapes shown are the first six of that ordering; other orderings are possible at the same frets.
| # | Shape (low string first) | Notes | Degrees | Bass | Span (frets) | Sounding strings |
|---|---|---|---|---|---|---|
| 1 | 6-8-8-7-6-8 | Bb F Bb D F C | 1 5 1 3 5 9 | Bb | 2 | 6 |
| 2 | 6-3-3-3-3-6 | Bb C F Bb D Bb | 1 9 5 1 3 1 | Bb | 3 | 6 |
| 3 | 6-3-3-5-3-6 | Bb C F C D Bb | 1 9 5 9 3 1 | Bb | 3 | 6 |
| 4 | 6-5-3-5-3-6 | Bb D F C D Bb | 1 3 5 9 3 1 | Bb | 3 | 6 |
| 5 | 6-5-3-5-6-6 | Bb D F C F Bb | 1 3 5 9 5 1 | Bb | 3 | 6 |
| 6 | 6-5-8-5-6-6 | Bb D Bb C F Bb | 1 3 1 9 5 1 | Bb | 3 | 6 |
Shape numbers run from the lowest string to the highest, so the left-hand number is the sixth string (low E) in standard tuning. Multiple shapes are listed because a chord can be voiced several ways, and because a lower position is not always the better sounding one.
Related chords and scales
- KeyEverything in Bb
- ScaleBb major
Related
- KeyKey of Bb
- ScaleBb major
- ChordBb6 — Sixth
- ChordBbm6 — Minor sixth
- ChordBb11 — Dominant eleventh
- DegreesBb — degree map
- Neck mapBb — note map
- ScaleBb aeolian