A dominant seventh flat ninth chord is composed using a root/1st, major 3rd, perfect 5th, minor 7th and minor 9th (or R/1-3-5-♭7-♭9) intervals played simultaneously. Generally written as C7(♭9), C7(-9) or C(-7-9), it is good practice to simply use an uppercase C followed by a super scripted 7(♭9) to represent it in writing (ie: C7(♭9)).
Dominant seventh flat ninth chord profile
Intervals | root/1st, major 3rd, perfect 5th, minor 7th, minor 9th or R/1-3-5-♭7-♭9 |
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Stability | Dissonant, unstable, unresolved |
Grouping class | Pentad |
Common names (examples in C) | C7(♭9), C7(-9), C(-7-9) |
Chord shapes/voicings
Audio sample(s)
C Dominant seventh flat ninth chord voicing #2 |
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