A dominant ninth flat five chord is composed using a root/1st, major 3rd, diminished 5th, minor 7th and major 9th (or R/1-3-♭5-♭7-9) intervals played simultaneously. Generally written as C9(♭5) or Cdom9(♭5), it is good practice to simply use an uppercase C followed by a super scripted 9(♭5) to represent it in writing (ie: C9(♭5)).
Dominant ninth flat five chord profile
| Intervals | root/1st, major 3rd, diminished 5th, minor 7th, major 9th or R/1-3-♭5-♭7-9 |
|---|---|
| Stability | Dissonant, unresolved |
| Grouping class | Pentad |
| Common names (examples in C) | C9(♭5), Cdom9(♭5) |
Chord shapes/voicings
Audio sample(s)
| C Dominant ninth flat five chord voicing #2 |
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