A Hidden Ulster: people, songs and traditions of Oriel is a 2003 non-fiction book that is a referencing of Irish traditional music in the Oriel area by Irish singer Pádraigín Ní Uallacháin. The book was published by Four Courts Press in both hardback and paperback formats. The book's fourth and fifth editions were printed in 2021 and 2023 under new publisher, Ceoltaí Éireann. Source: Wikipedia (en)