Personalized Viola Music Trio Youth T-Shirt. Viola Youth T-Shirt - White music gift with a trio of instruments for the violist in orchestra. Also a great gift for an orchestra teacher. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.