The short version
- C♯6 is C sharp sixth, also written D♭6. Its notes are C♯, E♯ (sounds as F), G♯ and A♯ (formula 1 – 3 – 5 – 6).
- Easiest way to play it: a barre on the 4th fret, frets x 4 6 6 6 6 from low E to high E (x = don’t play).
- It sounds sweet, vintage, a bit 1950s. Use it as a softer, jazzier I chord, especially at the very end of a song.
- C♯6 turns up in 6 keys: F♯ major (as the V6), D♭ major (as the I6), A♭ major (as the IV6), E♭ minor (as the VII6) and B♭ minor (as the III6), and more in the table below.
- Can’t barre yet? Capo 1 and play an open C6 shape.
How to play C♯6 on guitar, step by step
Start with the shape marked “Start here” above: the barre chord, root on the 5th string (4th fret).
- Lay your middle finger flat across fret 6, from the 4th (D) string to the 1st (high E) string.
- Put your index finger on fret 4 of the 5th (A) string.
- Don’t play the low E string: skip it, or touch it lightly with a spare finger so it can’t ring.
- Strum from the 5th (A) string down, then press Strum on this page to check it sounds the same.
Once that’s comfy, try the other shape. Shape 2 is the movable shape, root on the 6th string (9th fret): 9 x 11 10 11 x. Same chord, different spot on the neck, which helps when the next chord lives nearby.
No barre? No problem. Pop a capo on the 1st fret and play the open C6 shape: it comes out as C♯6. (Capo 4 with an open A6 shape works too.) Barre chords take everyone a few weeks. Mine sounded like a kettle for a month.
Notes in the C♯6 chord
C♯6 is built from 4 notes. On guitar you’ll often play some of them twice, on different strings. That’s normal; the chord is still C♯6.
| Note | Interval | What it does |
|---|---|---|
| C♯ | 1 root | Names the chord and anchors the bass. |
| E♯ (sounds as F) | 3 major third | Makes it major (happy). |
| G♯ | 5 perfect fifth | Adds weight; often the first note left out. |
| A♯ | 6 major sixth | Sweet, vintage colour. |
What C♯6 sounds like, and when to use it
A major chord with the sixth added. Sweet and vintage: the ending chord of a 1960s pop song, a swing rhythm part, or a Beatles outro. Use it as a softer, jazzier I chord, especially at the very end of a song.
What key is C♯6 in?
C♯6 turns up in 6 keys: F♯ major (as the V6), D♭ major (as the I6), A♭ major (as the IV6), E♭ minor (as the VII6) and B♭ minor (as the III6), and more in the table below. Tap a key to see the rest of its chords on the circle of fifths.
| Key | Numeral | Spelled as |
|---|---|---|
| F♯ major | V6 | C♯6 |
| D♭ major | I6 | D♭6 |
| A♭ major | IV6 | D♭6 |
| E♭ minor | VII6 | D♭6 |
| B♭ minor | III6 | D♭6 |
| F minor | VI6 | D♭6 |
Chords that go with C♯6
Here’s a progression to try: C♯6 – A♯m7 – D♯m7 – G♯7 (I6–vi7–ii7–V7), a 1950s turnaround wearing a cardigan.
More progressions → Transpose it →
Using C♯6 in a Suno prompt
Suno pays attention to chord names in a style prompt, at least some of the time. Put the progression in, keep the BPM, and let it fill in the rest. Then compare its guitar part with the shapes above.
Swing, 132 BPM, chord progression C♯6 – A♯m7 – D♯m7 – G♯7, sixth-chord rhythm guitar, upright bass, brushed drums, crooner vocals, sweet and vintage
C♯6 chord FAQ
What notes are in the C#6 chord?
C♯6 has 4 notes: C♯ (the root), E♯ (sounds as F) (the major third), G♯ (the perfect fifth) and A♯ (the major sixth). The chord formula is 1 – 3 – 5 – 6.
How do you play C#6 on guitar?
The medium way is barre chord, root on the 5th string (4th fret). Strings from low E to high E: x 4 6 6 6 6 (x means don’t play that string). Lay your middle finger flat across fret 6, from the 4th (D) string to the 1st (high E) string. Put your index finger on fret 4 of the 5th (A) string. Don’t play the low E string: skip it, or touch it lightly with a spare finger so it can’t ring.
Is C#6 the same as Db6?
Yes. C♯6 and D♭6 are the same chord with the same fingering. They are just spelled differently. You’ll see C♯6 in sharp keys and D♭6 in flat keys.
What key is C#6 in?
C♯6 turns up in 6 keys: F♯ major (as the V6), D♭ major (as the I6), A♭ major (as the IV6), E♭ minor (as the VII6) and B♭ minor (as the III6), and more in the table below. Major keys: F♯ major, D♭ major, A♭ major. Minor keys: E♭ minor, B♭ minor, F minor.
What is the difference between C#6 and Bbm7?
Surprise: they share exactly the same notes (C♯, E♯, G♯ and A♯). C♯6 puts C sharp in the bass so it sounds sweet and settled; B♭m7 puts B flat in the bass so it sounds mellow and minor. Same ingredients, different plate.
How can I play C#6 without a barre?
Use a capo. Put it on the 1st fret and play the open C6 shape or Put it on the 4th fret and play the open A6 shape. It sounds as C♯6. You can also play just the top three or four strings of the barre shape.
Other major 6th chords
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