C#6 Sixth
The C#6 chord is built from the notes C# – E# – G# – A#.
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Also known as
C#ma6C#maj6
Chord tones, one by one
C#Root
Root
The fundamental note the chord is built on — C#.
E#Third
Major third
Four semitones — makes the chord major (brighter, happier).
G#Fifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
A#Sixth
Major sixth
Nine semitones — a major 6th. Adds a sweet, nostalgic color without the seventh's tension (6, m6).
🎼 Related scales
🎹 Modal analysis
This chord implies the Ionian (major) scale; its characteristic note is the perfect 4th, what sets it apart from Lydian.
🎸 Genres
Pop · Classical · Gospel