Badd9 chord
Badd9 (B add nine) is B, D♯, F♯ and C♯. It sounds bright, like a major chord with a shimmer on top.
Badd9
B add nine · B D♯ F♯ C♯ · 1 3 5 9
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Tap keys on the piano to find which chord they make. The editor opens without an account.
Notes in the Badd9 chord
From B, count 4 half steps up to D♯, 3 more to F♯ and 7 more to C♯. Its formula is 1 3 5 9: each number is the note’s place in the B major scale, with ♭ a half step lower and ♯ a half step higher. On the piano it is one white key and three black keys (D♯, F♯ and C♯).
| Note | Formula | Interval | Half steps up |
|---|---|---|---|
| B | 1 | Root | 0 |
| D♯ | 3 | Major third | 4 |
| F♯ | 5 | Perfect fifth | 7 |
| C♯ | 9 | Major ninth | 14 |
Badd9 chord inversions
An inversion is the same chord with another of its notes at the bottom. It keeps the chord’s sound but moves your hand less between chords, which is why pianists use them all the time. The notes are listed lowest first.
B D♯ F♯ C♯
Written Badd9, with the root at the bottom.
D♯ F♯ C♯ B
Written Badd9/D♯: D♯ at the bottom.
F♯ C♯ B D♯
Written Badd9/F♯: F♯ at the bottom.
C♯ B D♯ F♯
Written Badd9/C♯: C♯ at the bottom.
Keys with the Badd9 chord
Badd9 is built from the notes of these keys, so it fits songs in them. The Roman numeral says which note of the key it starts on. Each key’s page has its scale and all its chords.
Frequently asked questions
What notes are in the Badd9 chord?
Badd9 is B, D♯, F♯ and C♯. On the piano that is one white key and three black keys (D♯, F♯ and C♯).
How do you play Badd9 on the piano?
With your right hand, play B, D♯, F♯ and C♯ with fingers 1, 2, 3 and 5 (thumb to little finger). With your left hand it is 5, 3, 2 and 1. From B, count 4 half steps up to D♯, 3 more to F♯ and 7 more to C♯.
What are the inversions of Badd9?
Root position: B D♯ F♯ C♯. 1st inversion: D♯ F♯ C♯ B (Badd9/D♯). 2nd inversion: F♯ C♯ B D♯ (Badd9/F♯). 3rd inversion: C♯ B D♯ F♯ (Badd9/C♯). The notes are the same; only the lowest one changes.
What key is Badd9 in?
In major keys, Badd9 is the Iadd9 chord in B major, the Vadd9 chord in E major and the IVadd9 chord in F♯ major. In minor keys, it is the VIadd9 chord in D♯ minor, the IIIadd9 chord in G♯ minor and the VIIadd9 chord in C♯ minor.
Can I make a beat with Badd9?
Yes. “Make a beat in B major” opens the free editor with a lo-fi beat in B major on B F♯ G♯m E, the key where Badd9 is the Iadd9 chord. Then change any part, add a melody and your voice, part by part. No account is needed to start.
Make a beat in B major
Opens the free editor with a lo-fi beat in B major on B F♯ G♯m E, the key where Badd9 is the Iadd9 chord. Then change any part, add a melody and your voice, part by part. No account needed to start.
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