Learn › F Sharp Half Diminished Chord on Guitar (F#m7b5)
New Released in April 2026
F Sharp Half Diminished Chord on Guitar (F#m7b5)
F sharp half diminished (F#m7b5) on the guitar: press the strings shown below; some strings ring open. Strum all six strings and you hear F#, A, C, E. Here is the shape, finger by finger, plus the chords you will play next to it.
No account, no download. The demo has limited content. Advanced features are in ChordRunner Premium.
- MIDI keyboard
- Digital or acoustic piano
- Guitar
- Computer, phone or tablet
How to play F#m7b5 on guitar
Where each finger goes
- Middle: 6th string (low E), fret 2
- Ring: 4th string (D), fret 2
- Little: 3rd string (G), fret 2
- Index: 2nd string (B), fret 1
Which strings to strum
2x221x: × = do not play, 0 = open string.
Where F#m7b5 is used
F#m7b5 leads to B7 and then home: it is the ii chord of a minor key, as in F#m7b5 → B7 → Em.
F#m7b5 string by string
| 6th string (low E) | fret 2: F# |
|---|---|
| 4th string (D) | fret 2: E |
| 3rd string (G) | fret 2: A |
| 2nd string (B) | fret 1: C |
From F#dim to F#m7b5: 4th string (D): fret 4 → fret 2.
Slide this shape along the neck: fret 1 = Fm7b5, fret 3 = Gm7b5, fret 4 = Abm7b5, fret 5 = Am7b5.
Practise F#m7b5 with the microphone
Strum F#m7b5 near the microphone when it comes up in ChordRunner: the game checks all four notes, F#, A, C, E, and moves on. MIDI keyboard or microphone, both work. MIDI keyboard or microphone, both work.
Play the demoCommon questions
Is F#m7b5 easy on guitar?
Yes, it is one of the open chords beginners learn first. Start slowly, check that every string rings, then practise switching to F#dim.
What is the difference between F#m7b5 and F#dim on guitar?
F#m7b5 adds one note to F#dim: E, on top of F# A C. From F#dim to F#m7b5: 4th string (D): fret 4 → fret 2.
Which fingers do I use for F#m7b5?
Middle finger: 6th string (low E), fret 2, ring finger: 4th string (D), fret 2, little finger: 3rd string (G), fret 2, index finger: 2nd string (B), fret 1.
Does ChordRunner hear F#m7b5 on guitar?
Yes. Strum it near the phone or computer microphone and the game checks the four notes F#, A, C, E. A USB MIDI keyboard works too.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
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