F#7#5

— About this chord

F#7#5 (1–3–♯5–♭7), an augmented dominant 7th, raises the 5th for a restless, whole-tone shimmer that pulls hard toward resolution. Common in jazz turnarounds and blues cadences, it adds harmonic color where a plain F#7 would feel too settled, often used as a chromatic passing chord between two diatonic dominants. On guitar it forms a tight, compact shape with the root doubled nearby, and moves cleanly as a barre-adjacent form up and down the neck. Functionally it heightens dominant tension right before the tonic, a favorite of bebop comping and torch-song accompaniment. Also searched as F#dom7#5, F#+7, F#7aug, Gb7#5, or G♭7♯5.