Personalized Future Treble Maker Funny Music Toddler Long Sleeve T-Shirt. Treble clef and music notes for kids with quote that says future treble maker. 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.