Δ9 Chord on Guitar - P4 Tuning
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 in P4 tuning
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.
- 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.)