Belated happy St David’s day! Here is a Welsh tune, Ffidl Ffadl to celebrate the occasion, with huge thanks to Geraint for tracking down the title. I knew this tune partly through a student violin book I use frequently, and partly from the Solomon album by Calan, where it’s in a set called Ryan Jigs. Ffidl Ffadl (pronounced Fiddle Faddle in English) means nonsense (noun), or to mess around (verb).
Here are the dots, with a PDF available here: