B add chords
B add chords for piano with keyboard diagram.
Explanation: The Badd9 and Badd2 are four-note chords. Badd2 is sometimes written as B2.
Theory: Both chords contain the same notes, but the added notes belong to different octaves which are the ninth and the second notes in the scale.
Notes: B - D# - F# - C#
Notes: B - C# - D# - F#