You'll need a hacksaw to cut your PVC pipes to the correct length. You'll also need a measuring tape to measure the lengths of your PVC pipes and some glue to hold the pipes and connectors together. Purchase PVC-specific glue. You can find this type of glue at a hardware store.
Now that you have the necessary tools on hand, it's time to buy the construction supplies that will make up the music stand itself. You'll need several feet of 1/2-inch PVC pipe, as well as some elbow connectors and T-connectors to fit the pipes together. You'll also need a larger PVC pipe, around 2 inches, which you can cut in half and use as a shelf for actually holding the music.
Begin by cutting one of your pipes to be used as the stand's support. The length of this pipe will depend on whether you intend to use the music stand while sitting or standing. Create the base of the stand by gluing a T-connector onto the bottom of the support tube. Cut another pipe to at least 20 inches in length and run it through the T-connector. Fit additional T-connectors to both ends of the base pipe, and run two more pipes, at least 12 inches in length, through these T-connectors.
Next, assemble the upper portion of the music stand, which will be a rectangle with a vertical support brace in the middle. You'll need four elbow connectors, one T-connector, and a four-sided connector with one angled side. Cut three pipes to a length of 12 inches and four pipes to a length of 8 inches. The 12-inch pipes will serve as vertical supports, while the eight inch pipes will be placed horizontally to make up the rest of the frame. Attach two elbow connectors to either side of two of the 12-inch pipes, and place 8-inch pipes in the remaining holes of the elbow connectors. Attach a T-connector to one side of the remaining 8-inch pipe, and attach the four-sided connector to the opposite side of this pipe. This 8-inch pipe will serve as a center support brace in your frame. Glue half of the 2-inch pipe to the bottom of the frame as a shelf.