Personalized Tuba Geek Long Sleeve T-Shirt. Tuba Geek Music Long Sleeve T-Shirt - Black is fun for the whole tuba section in marching band or concert band. You'll love this funny tuba music slogan. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL