F♯7♯5
F# Dominant 7th Sharp 5 — the augmented dominant — the raised fifth leans hard into the resolution a fifth below.
The keys
F♯ – A♯ – D – E
What's inside F♯7♯5
| Note | Interval from root | Degree |
|---|---|---|
| F♯ | Root | 1 |
| A♯ | Major 3rd | 3 |
| D (spelled C♯♯) | Augmented 5th | #5 |
| E | Minor 7th | b7 |
Inversions
| Position | Keys (low → high) |
|---|---|
| Root position | G♭4 – B♭4 – D5 – E5 |
| 1st inversion | B♭4 – D5 – E5 – G♭5 |
| 2nd inversion | D5 – E5 – G♭5 – B♭5 |
| 3rd inversion | E5 – G♭5 – B♭5 – D6 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | G♭2 – E3 |
| Right (colour) | B♭4 – D5 |
Where F♯7♯5 lives
Hard resolution
F♯7♯5 → Bm9
Altered dominants resolve with maximum drama — especially into minor.
Chromatic approach
D♭m7 → F♯7♯5 → B
The alteration sharpens the pull of the standard two-five.
Put F♯7♯5 under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
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