Thank you so much for trying out the Prototype of Silent Sonata!
Yes, we regret that we didn't display more of the main game mechanic than we did. (interacting with the environment more with the Melodica/arrow keys.)
Learning the programming language C# and the Unity Game Engine from scratch took a large chunk of time from the Indie Game Making Contest 2018.
We believe that with this being our first step into the door of the Game Industry is on somewhat the right foot.
We hope to bring a better experience for you to play in the final build of Silent Sonata!