# half-diminished seventh chord

> chord composed of a root, minor third, diminished fifth and minor seventh (i.e. a diminished triad with an additional minor seventh)

**Wikidata**: [Q2857025](https://www.wikidata.org/wiki/Q2857025)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Half-diminished_seventh_chord)  
**Source**: https://4ort.xyz/entity/half-diminished-seventh-chord