guitar chord
C♯7
Major triad, minor seventh. The chord that wants to resolve a fourth up.
Written the other way round it is D♭7 — the same twelve keys on a piano, a different piece of notation.
Every fingering that fits a hand
x43404
moderate
x43101
hard
x43104
hard
x4310x
easy
x4340x
easy · no 5
What is true of it
C♯7 is C♯, E♯, G♯ and B — 1, 3, 5 and b7 counted from C♯.
On an instrument that cannot reach all 4, the 5 goes first, in that order.
The easiest of the 5 fingerings below is x43404: 4 fingers, held at the 3rd fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
1 string stays silent.
Where its notes are on the neck
The brass dots are C♯, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
C♯7/E♯
123121
C♯7/G♯
44340x
C♯7/B
x2312x
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.