B 9th chord

B9 chord (also called Dominant 9th chord) for piano presented by keyboard diagrams.
Explanation: The B ninth is a five-note chord. Due to practical circumstances, however, the fifth (F#) is often omitted and/or the chord is played inverted. The chord is often abbreviated as B9.
Omissions: B9(no3): B - F# - A - C#; B9(no5): B - D# - A - C#.
Theory: The B ninth chord is constructed with a root, a major third, a perfect fifth, a minor seventh and a major ninth.


B9 chord diagram
Notes: B - D# - F# - A - C#

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B9 inverted

B9 chord diagram
One of many possible inversions (B9/A)

Bb9 chord diagram
Notes: B - F# (left hand) A - C# - D# (right hand)
Two-hand voicing

B chord categories

B Bm B7 Bm7 Bmaj7 BmM7 B6 Bm6 B6/9 B5 B9 Bm9 Bmaj9 B11 Bm11 Bmaj11 B13 Bm13 Bmaj13 Badd B7-5 B7+5 Bsus Bdim Bdim7 Bm7b5 Baug Baug7