F#m13#11 Minor 7th
The F#m13#11 chord is built from the notes F# – A – C# – E – G# – B# – D#.
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Also known as
F#m13add#11F#min13#11
Chord tones, one by one
F#Root
Root
The fundamental note the chord is built on — F#.
AThird
Minor third
Three semitones — makes the chord minor (darker, sadder).
C#Fifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
ESeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
G#Extension
Ninth (9)
A 9th — colorful extension a whole step above the octave.
B#Extension
Sharp eleventh (♯11)
A ♯11 — the bright, floating Lydian color.
D#Extension
Thirteenth (13)
A 13th — full, rich top extension.
🎼 Related scales
Dorian ♯4 (Ukrainian)harmonic minor a perfect 4th below
🎹 Modal analysis
This chord implies the Dorian ♯4 (Ukrainian) scale; its characteristic note is the ♯4 / ♯11 (the Ukrainian color). It is a mode of the harmonic minor a perfect 4th below.
🎸 Genres
Gypsy jazz · Roma music · Klezmer · Classical