Grisham Frord Close Harmony Singers

The Grisham Frord Close Harmony Singers were a barber shop quartet and assassination cadre used as the official enforcers of the Guild of Musicians by Mr. Clete. The presumed first line-up of the group came to a nasty end at the finale of Soul Music. They would appear to have reformed with new personnel, however, as The Compleat Ankh-Morpork lists them as a going concern with an office in Tin Pan Alley, advertising "music and security consultancy".