The T'heydinn is an oral history of each Moorish tribe which is recited and handed down the generations by the tribe's griots through music and poetry. In traditional Moorish society, each tribe maintained its griots on a gabdh, a kind of lifelong annual pension. Changes in lifestyle have meant this no longer the case and the T'heydin is today an endangered oral culture. Most of the griots today are elderly, with rapidly diminishing numbers and very few youngsters show an interest in taking up the griots lifestyle. The T'heydin is an oral tradition that is handed down the generations through the imitation of the musical talents of the ancestors and is performed on festive occasions with musical accompaniment. The griots live in all regions of Mauritania, although some regions are better known for their griot families. The regions of Hodh, Tagant-Assaba, Trarza-Brakna and Adrar are particularly well known for its griots. The population of griots is currently estimated to stand at over a thousand.
