IPA: /ˈhɛksəˌkɔrd/
KK: /hɛkəˌkɔrd/
A musical term referring to a series of six notes, where there is a half step between the third and fourth notes, commonly used in medieval music.
The composer used a hexachord to create a unique sound in his piece.
Hexachord → It is formed from "hexa-" (from Greek "hex", meaning six) and "chord" (from Greek "chordē", meaning string or cord). The word "hexachord" refers to a musical scale consisting of six notes.
Think of 'six' ('hexa-') strings or notes ('chord') to remember that a hexachord is a musical scale with six notes.