On Nov. 4 at La Fabrika, fans of distinctive voices, thumping hip-hop rhythms, and socially engaged lyrics will enjoy a unique double bill: Philadelphia singer, poet, and activist Moor Mother combines rap and poetry recitation with elements of electronics, free jazz, punk, and sound collages. Pitchfork dubbed her “the poet of the apocalypse.” The second half of the evening will feature billy woods, an American underground MC, who carries an aura of mystery due to his hidden identity.