The instrument that I made is a PVC pipe that has diffrent materials put on to the PVC. It is suppose to be like somewhat like a guitar. We then move the rubber band, headband, and fishing line. It changes pitches because once you pick the materials because they are all diffrent sizes. Some of the challenges we ran into was how it was change pitches because we werent sure how they would be able to have the materials to stay on the PVC pipe.