The Siku (Quechua: siku, Aymara: siku, also "Sicu," "Sicus," "Zampolla" or Spanish zampoña), is a traitional Andean panpipe. It accompanies the folk music of the high Andes, where it is widely used. It is one of the main instruments in Andean Huayno and the principal instrument in Sikuri and K'antu.