The F# Half-Diminished Seventh Chord

The F#m7b5 chord is a half-diminished seventh chord. Half-diminished seventh chords are mainly used as a second-scale degree in a minor key or minor cadence, or with dominant function in a major key.

Fingering the F#m7b5 Chord

• Use your middle finger on the 2nd fret of the low E string
• Place your ring finger on the 2nd fret of the G string
• Place your index finger on the 1st fret of the B string
• Strum all the strings together, but mute the A and D string with your middle finger

Chord Attributes

• Intervals: 1 – b3 – b5 – b7
• Notes: F# – A – C – E
• Chord Symbols: F^#m^7b5, F^#o7, F^#dim⁷