Bb add chords

Bb add chords for piano with keyboard diagram.
Explanation: The Bbadd9 and Bbadd2 are four note chords. Bbadd2 is sometimes written as Bb2.
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.

Bbadd9

Bbadd9 chord diagram
Notes: Bb - D - F - C

Bbadd2

Bbadd2 chord diagram
Notes: Bb - C - D - F

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Bb chord categories

Bb Bbm Bb7 Bbm7 Bbmaj7 Bb6 Bbm6 Bb6/9 Bb5 Bb9 Bbm9 Bbmaj9 Bb11 Bb13 Bbadd Bb7-5 Bb7+5 Bbsus Bbdim Bbaug