C#madd9 (Guitar, Intermediate)

C# minor add-9th is basically a C#m triad (C#, E, and G#) with a higher octave of the second degree (the ninth: D#):

A string: C# (root)
D string: E (minor 3rd)
G string: G# (perfect 5th)
B string: D# (added 9th)

And that's C#madd9!