Mananatili Ka is the original sound track of Mayday’s documentary film about the life of labor leader Crispin “Ka Bel” Beltran. The song was written by Empiel Palma, arranged and performed by Karl Ramirez.

“Ka Bel” is a production of the Mayday Multimedia Collection in cooperation with the National Commission for Culture and the Arts, Crispin B. Beltran Resource Center, Sine Patriyotiko, and Kilusang Mayo Uno.

This electronika-acoustic remake of Makibaka was performed and arranged for Higante’t Tutubi, a short animated feature about the Philippine environment produced by the Center for Environmental Concerns - Philippines. Animation by Audrey Ang and Karlene Co, with story written by Lisa Ito and Mykel Andrada.