B♭ Add 9
Bbadd9 · Root
Every chord tone stacked from the root up.
Click keys to experiment with the chord
B♭ – D – F – C
1 – 3 – 5 – 9
Same pitch classes as add2. The difference is voicing: add9 places the 2nd/9th above the 5th in the next octave.
The Bbadd9 chord sounds sparkling and shimmery, adding brightness to a triad. Its notes are Bb, D, F, C. This chord is commonly heard in pop music, and R&B and soul.