In 1991 a Welsh fiddler named Mike Lease came to town and led in sessions of Welsh traditional music. He told us that Pwt-ar-y-Bys is simply a transliteration of the English phrase 'Buttered Peas.' Or maybe it was 'Butter and Peas.'

It's true that we have no tunes called 'Buttered Parsnips' and so forth. But tune names can be one-of-kind, no doubt about it. For example, I've been playing a Welsh tune called Dacw Fuwch! (Look! A Cow!) this morning.

I could post the MIDI for Pwt-ar-y Bys, if anybody is interested. Just not right now.