Dominant seventh flat ninth chord

A dominant seventh flat ninth chord is composed using a root/1^st, major 3^rd, perfect 5^th, minor 7^th and minor 9^th (or R/1-3-5-♭7-♭9) intervals played simultaneously. Generally written as C^7(♭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: C^7(♭9)).

Dominant seventh flat ninth chord profile

Intervals	root/1^st, major 3^rd, perfect 5^th, minor 7^th, minor 9^th or R/1-3-5-♭7-♭9
Stability	Dissonant, unstable, unresolved
Grouping class	Pentad
Common names (examples in C)	C^7(♭9), C7^(-9), C^(-7-9)