Guitar Chord C#6: Structure, Notes and Theory

C#6 — a chord from the note “C#” with a bright, resilient tone and a characteristic sixth. A jazz and pop staple as a soft tonic without a major seventh, keeps the texture clean and lets the top voice move naturally. Works well with clean guitar in transparent mixes.

Formula and Structure of the C#6 Chord

Interval formula from the root note: 1 — 3 — 5 — 6. The chord consists of the following notes:

• Db — unison and the main tonal anchor.
• F — major third with a bright major quality and clear stability above the tonic.
• Ab — perfect fifth, stabilizing the triad and adding tonal grounding.
• Bb — major sixth with a warm upper hue, pairing with the 9 to form a soft 6/9 tonic.

Together, these notes form the harmonic foundation of the C#6 chord, defining its sound and role in the musical context.

Alternative Names for the C#6 Chord

There are no alternative names for this chord.

Using the C#6 Chord

Place the 6 on top as a melodic note for a bright tonic. Pair 6 and 9 (6/9) on a clean tone and keep the bass simple. In swing and pop short right-hand accents and a counter-line 6 -> 5 -> 6 work great. Don’t mix 6 and 7 in one voicing, and with dense textures feel free to drop the fifth.

Conclusion

C#6 is an expressive and versatile chord. Learn several fingerings, experiment with different positions and voice spacing, then try weaving it into your own playing — this will help you quickly find your unique tone.