Used for a art installation
It works very well! I tried first with my daughter and It was very fun for her. At the beginning I couldn't understand how to do the update but it was super easy at the end as you just need a paper clip. So it needs to be explained it more clearly on the website and tuto-video. Because it looks complicated even it's very easy.
I will use it for a performance with a jazz drummer musician for an exhibition and it will be also available for the public to be more involved into the artwork as it's very easy to understand and get into it and play with it.