Dominant 9 chords are often used in jazz and blues songs.
You will add a fifth note to the dominant 7th chord.
In the major scale it is the note above the octave.
It is also the 2nd note, but when place above the octave note is it is called the 9th.
Blues and Jazz uses dominant 9th chords throughout the songs.
You already know the dominant 7th chord is made up of four notes, the root, the third, and the fifth and the flatted 7th.
Example: C 7 has these notes, C (root) , E (third), G (fifth), Bb (flatted 7th).
You will play the C7 chord and add the 9th (2nd) note D.
C9 is short for C dominant 9
This is the C Dominant 9th chord. (C9)
Blues and jazz music use dominant 9th chords throughout a music piece as a subtitute for major chords.
Play this C dominant 9th chord.