Ocarina is one of the first applicaizoni released in the AppStore, which enables the Smule owes much of its initial success. It's really nice and fun and is now being offered free for the next three days. I strongly recommend you download it now! 
With Ocarina we blow into the microphone of the iPhone screen and move your fingers to play this fun tool. There are also automatic mode and we can also listen to other people connected around the world while playing the instrument. Try it!
