Robert ap Huw was born circa 1580, growing up in the settlement of Llanddeusant on the island of Anglesey.
[2] Around 1613, Robert ap Huw compiled a retrospective manuscript of harp music, the only reliable source of cerdd dant to survive.
[2] The compositions within the manuscript include 31 in tablature notation which are supplemented by a series of exercises on the 'twenty-four measures' of cerdd dant.
[3] Upon Morris' death in 1765 the manuscript passed to his brother Richard, who at one stage lent the work to the noted Welsh harpist John Parry.
[3] The manuscript eventually found itself in the ownership of the London Welsh School, whose Governors presented it to the British Museum in 1844.