Here is an A(add 9) chord. The chord formula is 1 3 5
9.
This a nice substitute for a "Plain Jane" A
chord. The 9 that is added is just the 9th degree of an
A major scale, which in this case is a B note. Sometimes
the chord is written as A(add B).
A
B C# D E F# G# A B - A major
scale
1 2 3 4 5 6 7 8
9
Try playing the chords below to hear how this
chord might be used
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