"Desperta Ferro!"---literally, "Rise, iron!" in medieval Catalan---was one of the battle cries employed by the fierce Almogvers as they struck the earth with their weapons, causing sparks to fly from the stones. Here, it becomes the main idea of a thrilling work for Tenor/Bass voices, piano, and optional percussion. Bravado and confidence surge with each additive cry of the powerful, newly composed text. Sure to spark a lifelong love of choral singing!