I found that when using this software, it was simple. There wasn't anything really that was 'music knowledge' in particular. And for me that was great. The program, I found was very user friendly and more importantly, child friendly. I see no reason why a child could not make a piece of music (which would probably be better than mine).
Unfortunately I have mot been able to add my music to this post as I am not sure how to, if it is even possible. If you know of a way to add a music file please let me know or say how you found the software.