I teach welsh dancing here in Llantwit Major and play welsh dance music and have done for many years. My view is that although there are many dances that other parts of the UK also dance to there is an authentic welsh traditon. The trouble is is was smashed about by the religous revivals here, notably the 1906 revival that happend just as the rest of the Uk at the time was beginging to treasure its traditions. That has undoubtedly affected things. But I can see certain patterns in the tunes and I can hear a particulrly welsh phrasing in them. Like the way the fiddle affceted irish tunes I think the harp affected welsh tunes. Tunes travel. Look at Ty Coch Cardydd (the red house of cardiff), often put forwards as welsh tune. Youll find versions all over Britain, i think its probably a Playford tune originally. But Ty coch cardydd as played in wales is differnt to other versions, its got a welsh accent to me.   In the actual dancing theres acedemic evidence that a great deal of stepping was included in the way people danced here. Importantly for me i see threads that run between dancing and music from all over these islands that bind us together rather than seperates us.

best wishes

ps I do call Ceiliog y Rhedyn

stevethesqueeze