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Δ9 Chord on Guitar

4-Voices on Fretboard in Standard Tuning:

Image of Δ9 Chord on the Guitar.


There are over 70 voicings for the Δ9 chord on guitar and the image above shows only 3 of them. For more voicings see: Fretboard Chord Charts for Guitar

The Δ9 chord contains a major third, perfect fifth, major seventh, and a major ninth.

The intervallic relationships it contains are: major third, perfect fifth, major seventh, major ninth, minor third, perfect fifth, minor seventh, major third, perfect fifth, minor third.


  • Root
  • Major Third
  • Perfect Fifth
  • Major Seventh
  • Major Ninth


The Δ9 chord has a dissonance rating of 105*

*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.)

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