Bb9 chord
The Bb9 chord (Bb dominant ninth, also written A#9) on a piano: the notes, every inversion and the keys it belongs to. Tap play to hear it, and download it as MIDI.
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Bb1D3F5Abb7C9
About the dominant ninth chord
A dominant seventh with the ninth on top. Funky and full.
Formula: 1 3 5 b7 9. Used in: Funk, soul, disco and jazz.
More Bb chords
Other dominant ninth chords
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Questions
What notes are in a Bb9 chord?
Bb, D, F, Ab, C.
What is the formula of a dominant ninth chord?
1 3 5 b7 9. A dominant seventh with the ninth on top. Funky and full.
Is Bb9 the same as A#9?
Yes. Bb and A# are the same key on the piano, so the chords sound the same. Which name is used depends on the key of the song.
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