This horn fragment is made of sheet tube, once joined by rivets to an inside strip.

One of the most extraordinary discoveries at Llyn Cerrig Bach was part of a musical instrument – a horn in the shape of a C or S. When whole, it had a small mouthpiece and a blazing bell. Complete examples of similar instruments have survived in marshes in Ireland. Reproductions of them were created in Ireland and Scotland and their haunting sound reminds us of a musical tradition which belongs to pre-history. It seems that these horns were used during ceremonies as well as to frighten the enemy in battles.