who knew grannie: a dub aria by Toronto’s ahdri zhina mandiela is a World Premiere produced by Obsidian Theatre in association with Factory Theatre, March 18 – April 4. The show’s previews start on March 13. who knew grannie: a dub aria is about four cousins who reunite for the burial of their matriarch. They go back to Jamaica and reclaim their past and discover who they are through childhood games, songs and powerful memories. On the wings of the symbolic sankofa bird, the cousins go on a powerful cathartic journey full of joy, laughter and pain to the music of the heart and the drums of their homeland. mandiela, who is also an award-winning director and performer, has a unique muscular poetic voice that drives this imaginative theatrical dub aria.