WOW, what an app! This app has enlightened my boys 3&5, to the wonderful world of music and the instruments that create the sounds. This app sparked an interest within them that I, as a parent, didnt know was there inside of them. They were both so engaged listening and learning. Their love of animals, especially cats, and all of the interactivity throughout the book kept their interest the entire time. This app really touched on listening skills. They were able to identify the many instrument sounds in the "Play Games" section, which really impressed me! The Learn chapter and the Play Game chapters are a huge plus. They helped with the identity of musical instruments through pictures and sounds. The boys also loved having their photos taken with the cool cats! The narration, animation, navigation and information contained in this app is superb! A BIG thank you to the developers of this ingenious, wonderful, top notch app!