B add nine piano chord (Badd9)

An add9 chord adds the ninth (the second, an octave up) to a major chord, without the seventh. It enriches the sound while staying bright: popular in pop and folk.

On the keyboard

Chord notes

NoteInterval
Broot
D♯ (D sharp)major third
F♯ (F sharp)perfect fifth
C♯ (C sharp)major ninth

Formula: 1 – 3 – 5 – 9 · B – D♯ – F♯ – C♯

A progression with this chord

  1. Badd9Iadd9
  2. F♯V
  3. A♭mvi
  4. EIV

The chord replaces the first degree of a pop progression to enrich it.

Other B chords

The same chord on other roots