Erin Holloway-Moseley is so inventive. What a creative mind she has. She needed to create a bass violin (fiddle?) for someone so she came up with this. This is one of the patterns taught at Tat Days. I took the class and had a lot of fun.
Now this pattern is in 2 parts. I asked her about doing it in one pass since, when I can, I prefer continuous tatting. Her response had to do with opening a can of worms. Now that I have it done (her way) I agree that it would really be difficult to do in one pass.