Badd9
Badd9
Notes
B · D♯ · F♯ · C♯
Intervals
- RootB (1P)
- Major 3rdD♯ (3M)
- Perfect 5thF♯ (5P)
- Major 9thC♯ (9M)
Fretboard
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About
The Badd9 (B–D♯–F♯–C♯) adds a ninth to a major triad without including a 7th. The distinction matters: because there is no 7th, the chord stays harmonically stable and resolved rather than suggesting dominant or subdominant motion. The C♯ adds brightness and shimmer; the D♯ retains the major identity. On guitar, open-string voicings make add9 sounds particularly resonant. The 5th can be omitted without loss; the 3rd and 9th are both essential. Compared to BMaj9, add9 is simpler and more grounded — a major triad with a single added color. Compared to plain B, the 9th adds a touch of modern shimmer.
Similar chords
Chords sharing two or more notes with this one, ranked by overlap.
Scales containing this chord
- B Lydian (I)
- B Major (I)
- B Major Pentatonic (deg 1)
- B Mixolydian (I)
- A Lydian (II)
- A♭ Blues (deg 2)
- A♭ Dorian (III)
- A♭ Minor Pentatonic (deg 2)
- A♭ Natural Minor (III)
- A♭ Phrygian (III)
- B♭ Locrian (II)
- B♭ Phrygian (II)
- D♭ Dorian (VII)
- D♭ Mixolydian (VII)
- D♭ Natural Minor (VII)
- E Lydian (V)
- E Major (V)
- E Melodic Minor (V)
- E♭ Locrian (VI)
- E♭ Natural Minor (VI)
- E♭ Phrygian (VI)
- F Locrian (V)
- F♯ Dorian (IV)
- F♯ Major (IV)
- F♯ Melodic Minor (IV)
- F♯ Mixolydian (IV)
Scales whose notes include every chord tone. The Roman numeral (or scale degree) marks the chord root’s position in the scale.