Fm7b5

About this chord

Fm7b5 (F half-diminished, Fø7) has a shadowy, tense, melancholic color—mysterious, smoky, and suspenseful with a bittersweet pull. A jazz and blues staple, it also appears in classical harmony and film-score noir, fitting fusion ballads and moody soundtracks. Its flavor can hint at Mediterranean and European art-music traditions, lending a cosmopolitan, late-night vibe. Technically a sophisticated jazz voicing, often requiring careful left-hand control or barre shapes on guitar and smooth voice-leading on piano. Commonly used as iiø7 in minor keys, it creates elegant tension that resolves to V7 or i, perfect for intros, turnarounds, and chromatic progressions.