From WikiPilipinas: The Hip 'n Free Philippine Encyclopedia
Ullalim -this is a long epic song of the Kalinga about the adventures of Banna, the hero of the epic, and his amorous relationship with Laggunawa. This song is usually sung at night during happy festivities like a peace pact or budong. It can also be sung in the home for entertainment. The song contained several chapters about bravery, wisdom, heroism, and nobility of the hero Banna.
Kagawaran ng Pananaliksik sa Musika, Dalubhasaan sa Musika, Pamantasan ng Pilipinas