Sharp Ear apps are prepared to improve home work for musical training. In this application, dedicated to the learning of rhythm, the user is invited to listen to the sound of rhythms, and later to detect them. After a training phase, the user can venture out and check how many rhythms he can hear in 60 seconds. The game can be carried out figure by figure or by phrases. The progression is divided into 7 steps of cumulative sets of cards, starting with sets of 3 cards. The user can choose to work the simple rhythm (binary) or composite (ternary) or even mixed. The games will produce hearing improvements if you play every week, even if only once! You'll only get to the most advanced stages if you repeat the game several times. Don't give up! This app works better with rhythmic cards available for sale in our website. If you know students of other Conservatories, Music Schools or colleagues who like music, you can help us by recommending the app and the website! Thank you and good training!