F-flat major
F-flat major (or the key of F-flat) is a theoretical key based on F♭, consisting of the pitches F♭, G♭, A♭, B, C♭, D♭, and E♭. Its key signature has one double flat and six flats.
| Relative key | D-flat minor (theoretical) →enharmonic: C-sharp minor |
|---|---|
| Parallel key | F-flat minor (theoretical) →enharmonic: E minor |
| Dominant key | C-flat major enharmonic: B major |
| Subdominant | B-double flat major (theoretical) →enharmonic: A major |
| Enharmonic | E major |
| Component pitches | |
| F♭, G♭, A♭, B, C♭, D♭, E♭ | |
The F-flat major scale is:
Its relative minor is D-flat minor, usually replaced by C-sharp minor (see reason below) and its parallel minor is F-flat minor, which is normally replaced by E minor, since F-flat minor's four double-flats make it generally impractical to use. Because of that, it is usually enharmonic to E major with 4 sharps.
The scale-degree chords of F-flat major are:
- Tonic – F-flat major
- Supertonic – G-flat minor
- Mediant – A-flat minor
- Subdominant – B-double-flat major
- Dominant – C-flat major
- Submediant – D-flat minor
- Leading-tone – E-flat diminished
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