Chords

How to use 9th chords

How to use 9th chords
  1. How do 9th chords work?
  2. What are ninth chords used for?

How do 9th chords work?

In music theory, a ninth chord is a chord that encompasses the interval of a ninth when arranged in close position with the root in the bass.
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Ninth chord.

root position1st
2ndand 3rd inversion
resolving to I chords, followed by a I 9 ♯7 chordresolving to IV

What are ninth chords used for?

A C7#9 would include these notes: C-E-G-B♭-D#. This ninth chord is rather unusual in that it doesn't necessarily behave the way other dominant chords do. In jazz it can often be used to resolve to a I7; in rock, the chord is used for jarring effect as the I chord, as it is on “Purple Haze” and the Beatles “The Word.”

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