Personalized Musical Timing Dark Products Youth T-Shirt. Any musician knows it's not just the musical notes. It's all about timing! Fun gifts for musicians, students and teachers at back to school, birthdays and holidays. 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.