What is the gankogui?

The gankogui is a traditional African musical instrument, specifically a double-bell used in various West African music ensembles, particularly among the Ewe people in Ghana. Made from metal and often played with a stick, it produces a sharp, resonant sound. The gankogui serves as a time-keeping device in ensemble performances, providing rhythmic support for other instruments and vocals. Its distinct tone is integral to the polyrhythmic structures characteristic of African music.