What a delightful little ditty! I really like the way you combined the ukelele with the xylophone and the clapping percussion. It's refreshing, fun, original, and (I think) very marketable. Did you do the whole thing on a synthesizer? It would probably work for a child's video game or app. I am not very knowledgeable about marketing that kind of thing. I would definitely recommend you get it on audiosparx.com