and playing to learn! It is a series pitch training.This app, listen to sound, is an app that shed what sound.Monophonic sound 1, 2 sound-3 sound. You can challenge the 3 chords Increasing your friends.It will appear on the exam 10 questions. Please try your best or take 100 points.Ranking, it will be the ascending order of a lot of points order and time.Friends with each other, please enjoy in parent-child confrontation.※ This app, there is a case to display the ads in the app.Advance on your note, please download.※ promotional videos in Google Play is the iOS version.