*** ATTENTION! *** 1. Electric Grand Piano is a *SOUND PLUGIN* for another app called Functional Ear Trainer. It's not a stand-alone application!!! Install FET first. 2. Moreover you need to have an in-app purchase "Sound Plugins" to enable them. To activate Electric Grand Piano: 0. Install it. 1. Run Functional Ear Trainer. 2. Click on the "gear" icon in the Main Menu. 3. Choose "Electric Grand Piano" under the "Sounds" setting. 🎶 Enjoy! :)