What year did the Belfast harp festival take place? 1792. Why was the BHF organised? To try and prevent the harping tradition from dying out in Ireland. Who organised the BHF? Patriotic citizens such as James Mc Donnell and members on the United Irishmen. What did the organisers of the BHF way to encourage? New performers to play the harp. How many Irish Harpers played at the event? 10. How.