Cornu (horn)

A cornu or cornum (Latin: cornū, cornūs or cornum, "horn", sometimes translated misleadingly as "cornet"; pl.: cornua) was an ancient Roman brass instrument about 3 m (9.8 ft) long in the shape of a letter 'G'. The instrument was braced by a crossbar that stiffened the structure and provided a means of supporting its weight on the player's shoulder. Some specimens survive in the archaeological record, two from the ruins of Pompeii. The cornu may be difficult to distinguish from the buccina.