F♯7♭5/A♯ guitar shapes

Popular fretboard positions with fingering suggestions

Showing 8 of 27 playable shapes

About the chord

F♯ dominant 7th flat 5 / A♯ (1st inversion)

The F♯ dominant 7th flat 5 dominant 7th flat 5 chord introduces a diminished fifth C to the dominant 7th, producing a dissonant, unstable tension. This unresolved sound is commonly used in jazz and blues for dramatic harmonic movement and suspense. With A♯ in the bass, this voicing functions as the 1st inversion of F♯ dominant 7th flat 5.

Root note: F♯
Bass note: A♯
Chord tones: 4
Playable shapes: 27

Chord tones

F♯A♯CE

Notes & Intervals

Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.

F♯ Unison (Root) 1

The root anchors the chord and defines its tonal center.

A♯ Major Third 3

This note defines the chord's major quality and brings brightness to the sound.

C Diminished Fifth ♭5

The flattened fifth adds tension and a restless, unstable edge.

E Minor Seventh ♭7

The minor seventh adds bluesy or jazzy tension that wants to move onward.

Related Articles

Articles that reference this chord and explain how to use it in your playing.