1,008 guitar chords with several shapes each, finger numbers, difficulty and real sound, in any tuning.
C♯7 (also written D♭7) is a dominant seventh chord made of 4 notes: C♯, E♯, G♯, B. It sounds restless; it wants to move on, usually to the chord a fifth below, and you hear it in blues, rock and roll, and the V chord that pulls a song back home. It is the V chord of F♯ major and turns up in 2 other keys.
The library above opens on C♯7 with 14 shapes up and down the neck, starting with hand-checked ones. Tap a shape to hear it, or play it one string at a time.
| Note | Degree | Interval from C♯ | Semitones |
|---|---|---|---|
| C♯ | 1 | root | 0 |
| E♯ | 3 | major third | 4 |
| G♯ | 5 | perfect fifth | 7 |
| B | ♭7 | minor seventh | 10 |
Formula: 1 – 3 – 5 – ♭7. On guitar the 5th is often left out of the bigger shapes without changing the chord. With the other spelling, D♭7 is D♭, F, A♭, C♭: the same sounds under different names.
x464649(11)9(10)99x4340xx4310xxxx667989xxxThe fret 11 shape is the one to learn first. Once it is easy, try the shape at the 9th fret (9(11)9(10)99): the same chord, higher and brighter, handy when the chords before and after it sit up the neck.
C♯7 belongs to 3 keys: V in F♯ major, VII in E♭ minor, V7 in F♯ minor. In F♯ major, try I–V–vi–IV: F♯ – C♯7 – D♯m – B.
C♯, E♯, G♯, B: the root, major third, fifth, minor seventh.
Fret 11: xx(11)(13)0(13) (low string first), rated Beginner.
C♯7 has B where C♯maj7 has B♯. C♯7 sounds restless; it wants to move on, usually to the chord a fifth below; C♯maj7 sounds dreamy, warm and a little wistful.
No. The easiest shape is rated Beginner and needs 3 fingers.