I say I got tricked because when I was doing the piano basics and when I finished I got onto essentials and I add to have a premium to unlock new songs and learn more piano basics so this is just a trick the ad is terrible the added lying I recommend you not to install simply piano are you so hard this keyboard and it said that I can hear you loud and clear I didn't know what that meant but when I played Note e it didn't recognise it then that started to happen with the c and d.