C# Minor Add9, 3rd inversion (D# in the bass)
Also written as C#madd9/D#.
Notes, from the bass up
D# (bass)C#EG#
The same notes as C# Minor Add9 (D#, C#, E and G#), rearranged so D# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.