F+(#11) Guitar Chord | How to Play The F Augmented Fifth Sharp Eleventh added Chord
F augmented sharp eleven (written F+(#11)) takes its name from its interval stack, the root, major third, raised fifth and sharp eleventh, which gives the notes F, A, C# and B. The sharp eleventh is the same pitch class as a flat five, one octave higher.
Looking for a scale to play over it? The F whole-tone scale contains all four notes of F+(#11). The raised fifth and the sharp eleventh, C# and B, are only a whole step apart, which gives the chord its bite.
Several jazz progressions are laid out step by step if you want to hear it in context.
F augmented with sharp 11th guitar chord is also written as F+(#11), Faug(#11), F+#11 or Faug#11.
F+(#11) Chord Notes and Formula
Notes that compose the F +(#11) chord:
How the Augmented Fifth Sharp Eleventh added chord is built:
Formula: 1 3 #5 #11
F +(#11) Chord Interactive Fretboard
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More F Chords
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
Which notes does F+(#11) use?
F+(#11) is spelled F, A, C# and B. That is the root, the major third, the raised fifth and the sharp eleventh. No double accidentals are needed.
What is the B in F augmented sharp eleven?
The B is the sharp eleventh. The plain eleventh of F is Bb, and raising it a semitone gives B natural. It lies six semitones from F.
Which scale works over F+(#11)?
The F Whole-Tone Scale (F, G, A, B, C#, Eb) holds all four notes of the chord. It is the scale to reach for in a melody.
Is F+(#11) built on an augmented triad?
Yes. F, A and C# are two major thirds stacked, which is an augmented triad. The chord adds B on top and has no seventh.
