Excellent search, incredible your hunting @esgie. Here I will leave my own personal opinion on what I think of this application.

Pros:

• This application helps a lot because it teaches us a little more about the rhythm of music.
• Also this application can help every child, teenager or adult to improve and teach about the technique of knock.
• You do not need to be a music expert to be able to use this application.
• It is very good since it entertains a lot.

Cons:

• None for this hunt.