Author: Tabiya Atrahasis
Date: Aug 16, 2003 - 01:48

First among the Mesopotamian liturgists was the precentor, known in Sumerian as the gala (Akkadian "kalu"). Unlike the priest, he was not a consecrated functionary, although it was his duty to intone the liturgic cantillation. That many a "kalu" was only a part time official is borne out by several contracts, but the existence of the Sumerian galamah (Akkadian "kalamahhu") or chief precentor, who held the highest position in the city, reveals the sacred significance of his office.

Kalu was a position - not a person exactly.

URL: http://www.noplateau.com/sg/world_music.html

Hope this helps you out.