Chords in the key of C# minor on electric guitar
The key of C# minor has seven diatonic chords: C#mC#mC#mC#m, D#°, E, F#mF#mF#mF#m, G#mG#mG#mG#m, A and B. As sevenths: C#m7C#m7C#m7C#m7, D#m7b5, Emaj7Emaj7Emaj7Emaj7, F#m7F#m7F#m7F#m7, G#m7G#m7G#m7G#m7, Amaj7Amaj7Amaj7Amaj7 and B7B7B7B7. On electric guitar, the shapes below are the seventh chords of every degree, and the tonic one has C# in the bass.
On the electric guitar a chord needs only a few clear notes — the amp sustains them and fills the space, so you mute the strings you are not playing and let the tone carry the rest. Plugged into an amp, each chord sustains for as long as you hold it, and the tone — clean or driven — shapes the whole sound.
Seventh chords in C# minor on electric guitar
These are the chords of the natural minor scale. In practice the v often becomes V (major) or V7, borrowed from the harmonic minor, to create the leading tone that pulls back to the tonic.