According to Wikipedea, Bargello is a type of needlepoint embroidery consisting of upright flat stitches laid in a mathematical pattern to create motifs. The name originates from a series of chairs found in the Bargello Palace in Florence, Italy, which have a "flame stitch" pattern. Traditionally, Bargello was stitched in wool on canvas. Embroidery done this way is remarkably durable. It is well suited for use on pillows, upholstery & even carpets, but not for clothing. In most traditional pieces, all stitches are vertical with stitches going over two or more threads. Traditional designs are very colourful, and use many hues of one colour, which produces intricate shading effects. The patterns are naturally geometric, but can also resemble very stylized flowers or fruits. Bargello is considered particularly challenging, as it requires very precise counting of squares for the mathematical pattern connected with the various motifs to accurately execute designs...it entered the quilting world in modern times.
The first step in joining the colors was relatively easy. Each jelly roll was joined to form a tube. Then, if I am following directions correctly, strips of varying sizes were cut to form the wave. This weakens the end seam stitches a bit. I numbered each of the strips, and then started pinning and joining them. Each strip that was cut was a different graduated size going from narrow to wide and back to narrow again. Only one tube was cut in strips and numbered. And only 6 strips from the first tube have been pinned, joined and pressed. This is not a one-day or one-sitting kind of project.
It is, as was written above, very challenging. My guess is that consistency is key to make this work. From all I read, starting with solid rainbow colors makes it easy for the beginner. This pic represents the first jelly roll. The full impact of the quilt is yet to show itself.