Practice, practice, practice...that's what every teacher has told you will help you become a better musician. Now, you can show your teachers that you've been paying attention with this clever design. This custom print T-shirt is made from 50/50% cotton/polyester blend for comfort and durability. Since some t-shirt manufacturers sizes vary, please refer to the sizing chart. Simply compare your favorite t-shirt to the sizes in the chart to find the right size for you.