D Dominant 7th Flat 9 Sharp 9
D7b9#9 · Piano chord
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D – F# – A – C – Eb – E#
1 – 3 – 5 – b7 – b9 – #9
This dominant chord combines flat and sharp ninth tensions with the full dominant seventh foundation.
The D7b9#9 chord sounds distinctive, with a dominant 7th flat 9 sharp 9 character. Its notes are D, F#, A, C, Eb, E#.