C#7 Guitar Chord
A dominant seventh with sharp, energetic character. C#7 is perfect for blues in E major.
Also known as
- Db7
- C# 7
- Db 7
- C#dom7
- Dbdom7
- C# dom7
- Db dom7
- D-flat7
- C-sharp7
- D-flat 7
- C-sharp 7
- D-flatdom7
- C-sharpdom7
- D-flat dom7
- C-sharp dom7
- C# dominant 7th
- Db dominant 7th
- C# dominant seventh
- Db dominant seventh
- D-flat dominant 7th
- C-sharp dominant 7th
- D-flat dominant seventh
- C-sharp dominant seventh
How to Play This Chord
Position your fingers on the fretboard as shown in the diagram. The vertical lines represent the strings, from low E (left) to high E (right), and the horizontal lines are the frets. Numbers inside the dots indicate which finger to use: 1 (index), 2 (middle), 3 (ring), 4 (pinky). An X means don't play that string; an O means play it open. A bar spanning multiple strings means one finger presses across all of them at once — this is known as a barre chord.
Tips & Tricks
Play this as a barre at the 4th fret using the A7 shape, or at the 9th fret with the E7 shape. The 4th-fret voicing is more compact and easier to grab quickly during chord changes. This chord is essential for blues in the key of F#.