Personalized Musical Brain Toddler Long Sleeve T-Shirt. My brain on music in colorful text with an image of a happy brain with music note in it's eyes is a humorous music gift design for musicians and music lovers at birthdays and holidays. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.