F#6/9 Sixth
The F#6/9 chord is built from the notes F# – A# – C# – D# – G#.
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Also known as
F#69F#maj6/9F#majadd6add9
Chord tones, one by one
F#Root
Root
The fundamental note the chord is built on — F#.
A#Third
Major third
Four semitones — makes the chord major (brighter, happier).
C#Fifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
D#Sixth
Major sixth
Nine semitones — a major 6th. Adds a sweet, nostalgic color without the seventh's tension (6, m6).
G#Extension
Ninth (9)
A 9th — colorful extension a whole step above the octave.
🎼 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