A high dominant that pulls to G♯, more often written E♭7.
Index finger barres the A and G strings at the 6th fret
Load D♯7 onto an interactive fretboard, hear every note, and build it into a progression.
Play D♯7 in the Studio →A D♯7 chord contains the notes D#, A#, C#, G. It is built from the dominant 7th formula 1 - 3 - 5 - ♭7, with D# as the root.
Not harmonically — it is the same four notes wherever you play them. What changes is weight: a dominant voiced this far up sits above the bass rather than competing with it, so it works well in a band and can sound thin played alone. Lower voicings of the same chord carry more body.