In addition to her work as a visual artist, Onça is also the director and founder of the Tribal Fusion dance ensemble, Baraka Mundi. Based in Western North Carolina, the troupe combines live music, dance, myth, and storytelling to educate, entertain, and enchant.

In 2005, Onça realized a long-term artistic vision of hers, when she produced, directed, co-wrote, and performed in Secret of Ashes: the Phoenix Reborn. Performed by the dancers and musicians of Baraka Mundi and friends, Secret of Ashes was an all-original world fusion ballet, and a true community effort. The production was filmed live at the Asheville Community Theater on April 2, 2005.

The story is based on a Ukranian folktale, though the production has its roots in many different cultures. Experience a classic story of Good and Evil: the Firebird, symbol of hope & rebirth, and Baba Yaga, the wicked witch of the woods. A naive young woman is transformed when these polarizing forces collide in her life.