Soon after I posted this article last week, I noticed an error in the grid for part 2.
Beats 3 and 4 (the second “double”) should be tones, and not bass notes. In the grand scheme of things it is probably not totally crucial to the success of the piece, but I have corrected the grid for the original post to look like this;
Part 2 (over 8 beats)
I hope this hasn’t caused you any inconvenience.