"Here we go round the mulberry bush..." I'm probably aging myself with the lyrics to that song, lol. Do children still sing it?
While I was working on this tangle, the song popped into my head, because I had trouble doing the steps until I fell into a rhythm--go round the square drawing the rectangles. Then go round the square connecting them, and then go round again completing the connecting rectangles. And when working a grid, you go around the grid connecting the squares. So the name 'Mulberry' seemed appropriate.