Chord · 9ths

Bmaj9 — B Major 9th

Bmaj9 is the B major 9th chord. It is built on the root B with major 3rd (D♯), perfect 5th (F♯), major 7th (A♯) and major 9th (C♯) above it — the formula 1 3 5 7 9, sounding the notes B D♯ F♯ A♯ C♯. On the piano it sits at B (octave 3) and above in the library's voicing; the same 5 notes in any octave are still Bmaj9.

Root
B
Quality
Major 9th
Formula
1 3 5 7 9
Notes
B D♯ F♯ A♯ C♯

On the keyboard

Bmaj9 on the piano keyboard: B D♯ F♯ A♯ C♯BD♯F♯A♯C♯

The notes of Bmaj9

DegreeNoteInterval from the rootPitch
1BrootB3
3D♯major 3rdD♯4
5F♯perfect 5thF♯4
7A♯major 7thA♯4
9C♯major 9thC♯5

Other 9ths on B

Major 9th chords on every root

Part of the chord reference. See also the scales and the keys.