The F mi11♭5 chord is a six-note chord made up of F, A♭, C♭, E♭, G, and B♭. It is built from a root, minor third, diminished fifth, minor seventh, major ninth, and perfect eleventh.
Construction
F mi11♭5 = Root + Minor 3rd + Diminished 5th + Minor 7th + Major 2nd + Perfect 4th = F · A♭ · C♭ · E♭ · G · B♭
| Note | Interval | Degree |
|---|---|---|
| F | Root | 1 |
| A♭ | Minor 3rd | ♭3 |
| C♭ | Diminished 5th | ♭5 |
| E♭ | Minor 7th | ♭7 |
| G | Major 2nd | 9 |
| B♭ | Perfect 4th | 11 |
Key Signature
A chord has no key signature of its own, but the F mi11♭5 is the tonic (I) chord of F Major, whose key signature has 1 flat (B♭).
B♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of F Major
These are the triads built on each degree of the F major scale:
F mi11♭5 — Frequently Asked Questions
What is the F mi11♭5 chord on piano?
The F mi11♭5 chord contains the notes F – A♭ – C♭ – E♭ – G – B♭. On piano, play these notes together to sound the chord.
What notes are in the F mi11♭5 chord?
The F mi11♭5 chord (Fmi11♭5) contains 6 notes: F, Ab, B, Eb, G, Bb. Formula: R-m3-d5-m7-M9-P11.
How is Fmi11♭5 used in music?
Fmi11♭5 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for Fmi11♭5?
Fmi11♭5 uses scale degrees 1-b3-b5-b7-9-11, giving it its distinctive sound.