What does it do? – Musical Studio Review

Looks like it might be cool but there are no instructions and I'm not sure what exactly its supposed to do. You move these colored balls near the center ball and they make music for a couple seconds and then stop... How do you keep the music playing? There definitely needs to be a help section that explains the app functions and what all the sounds are. It's kind of useless without it. Maybe I'll change my rating if this is fixed.
Review by planethome on Musical Studio.