D#7sus4 chord
D# dominant seventh suspended fourth
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The D#7sus4 chord has the formula 1, 4, 5, b7 with notes D#, G#, A#, C#
The seventh suspended fourth chord combines the open, unresolved quality of the sus4 with a dominant seventh. It creates strong pull toward resolution and is commonly heard in rock and pop music as a dramatic pre-resolution chord.