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Dominant seventh flat five flat ninth chord | Ricmedia Guitar
A dominant seventh flat five flat ninth chord is composed using a root/1st, major 3rd, diminished 5th, minor 7th, minor 9th (or R/1-3-♭5-♭7-♭9) intervals played simultaneously. Generally written as C7(♭5♭9) or C7(-5-9), it is good practice to simply use an uppercase C followed by a super scripted 7(♭5♭9) to represent it in writing (ie: C7(♭5♭9)). …