A Welsh term for a plucked and, from about the 11th century, a bowed lyre. Three 18th-century six-string Welsh crwths have survived, but it fell completely out of fashion by the early 19th century. A small number of modern makers now make exact copies of crwths, and playing techniques are being rediscovered by Welsh traditional musicians through experimentation and in the light of the evidence of 16th-century treatises.