Fdim7
Dim 7 · F – G♯ – B – D
- FR
- G♯m3
- B♭5
- D6
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the Fdim7 chord
The Fdim7 chord (Dim 7) is built from F (the root), G♯ (a minor third), B (a diminished fifth) and D (a major sixth). Diminished seventh chords are symmetrical and restless, handy for dramatic passing motion.