make the sides of that drum with one section that has a zipper down the middle.
make sure your fabric is right side up. take your zipper and turn it face down. lay the left edge of the zipper even with the left edge of the right piece of fabric (see photo above). pin zipper in place.
use a zipper foot to sew that side of the zipper in place. repeat steps with the other side of the zipper.
once sewn in place, fold the zipper back so both rows of teeth are facing each other and press the zipper in place with an iron. pin the fabric in place.
switch back to a 