I will try to explain the process to you. If you look at the design copy you will see that there are eleven fabrics to be in the quilt. further notice that those eleven fabric , are repeated three time in each vertical row.
I do my bargello in sections...if I'm using 6 or 36 fabrics.
You can strip piece all you strips and make a tube, then cut a piece the width you want, then open the tube to the fabric you want to be at the top. You have to continue with this cut and unstitch for each vertical row.....or you can do as I do.
I figure out from my chart how many pieces I need for the whole quilt using fabric #1 on top...so on for all the fabrics that will be used on the top edge of my quilt.
I think this image will see that my color pattern across the width of the quilt is also 11 fabrics.
I arrange my first set of strips with fabrics 1,2,3,4,5,6,7,8,9,10,11.
Second set use fabric 2,3,4,5,6,7,8,9,10,11,1
and so on for all eleven strip sets.
Then figure out how many strips you need to cut from each of the sets and how wide they will be.
This is kind of complicated at first but once you get into it, it really isn't hard.
Clear as mud???? need more help, just let me know.