Information:
There are over 70 voicings for the 6/9 chord on guitar and the image above shows only 3 of them. For more voicings see: Fretboard Chord Charts for Guitar
The 6/9 chord contains a major third, perfect fifth, major sixth, and a major ninth.
The intervallic relationships it contains are: major third, perfect fifth, major sixth, major ninth, minor third, perfect fourth, minor seventh, major second, perfect fifth, perfect fourth.
Intervals:
- Root
- Major Third
- Perfect Fifth
- Major Sixth
- Major Ninth
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Dissonance:
The 6/9 chord has a dissonance rating of 96*
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*Dissonance is very subjective. So, as a general guideline, this number is mathematically derived by measuring the intervallic dissonance this chord contains. (The higher the number the more dissonant the chord.)