Makes learning and practicing piano more fun. We use artificial intelligence technology to allow you to discover scale and rhythm problems in time during the playing process. It is suitable for piano beginners and advanced players. At the same time, we also adapt to commonly used pianos and keyboards. No Bluetooth connection is required, and you can directly Identify piano sounds. - Four scenarios, from right-hand practice, left-hand practice, two-hand practice to whole song practice, to master a piece of music step by step; -Two modes, we provide horizontal and vertical modes to understand the rhythm more quickly; -Different levels of difficulty, for the same song, we have different levels of difficulty for learners at different stages to practice; -Intelligent evaluation, evaluation of different dimensions, so that learners can better know their own level; -Multiple functions, audition, variable speed and other functions allow learners to practice according to their own preferences; how to use: Just place your device (iPhone/ipad) on the piano or keyboard, no other connections are required. This app includes the following subscription options: - Subscription model: quarterly, semi-annual, annual. - Payment will be charged to iTunes Account at confirmation of purchase. - Subscriptions will automatically renew unless you turn off auto-renew at least 24-hours before the end of the current subscription period. - Free trial subscriptions will automatically renew unless cancelled 24 hours before renewal. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. - The renewal fee is equal to the value of the subscription price in USD as determined by "Apple's App Store Matrix". - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to the app. - You can subscribe for unlimited access to our premium features: -Complete piano error correction service; - All songs unlocked; - new songs every week; - more musical instruments; *Prices are equivalent to the subscription price in U.S. dollars as determined by the Apple App Store Matrix. Privacy Policy: https://docs.qq.com/doc/DUG5hc1RHZ056YXdI User Agreement: https://docs.qq.com/doc/DUE9jTm5MUmNKT0h4