The chord C#add9 that is shown here contains the notes: G#, A#, F, C#. The root of the chord is C#. The scale from which the chord is derived is Major add9 chord (1โ3โ5โ9), and the degrees of the scale are: 1, 3, 5, 9.
To play the chord C#add9 shown above, place your fingers as follows:
On string number 4 (the thickest), on fret number 1 with finger number 1 (index finger)
On string number 3, on fret number 3 with finger number 3 (ring finger)
On string number 2, on fret number 1 with finger number 1 (index finger)
On string number 1 (the thinnest), on fret number 4 with finger number 4 (pinky)
Finger numer 4 presses multiple strings as a barre.