The crwth ( or ), also called a crowd, is an archaic stringed musical instrument, associated particularly with Welsh music, once widely played in Europe. Four examples have survived and are to be found in St Fagans National History Museum Cardiff, the National Museum of Wales, Aberystwyth, the Warrington Museum and Art Gallery, and the Museum of Fine Arts, Boston.

Crwth Stringing and Tuning
The Shetland Gue, the Welsh Crwth, and the Northern Bowed Harp
Byd y canu : Hanes godidog y crwth Cymreig
Y Crwth
The Crwth
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Indo-European Lexicon: Middle Welsh Reflex Index
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1: PAGRINDINIAI EKONOMIKOS RODIKLIAI