The Piano Designer app from Roland Corporation is a free multimedia application for Android that allows you to personalize the sound of your Roland piano. The app is compatible with a range of Roland piano models, including the LX708, HP704, DP603, and more. With the app, you can adjust the pitch, volume, tonal characteristics, and other parameters of your piano's sound elements, much like an experienced piano technician would fine-tune an acoustic piano. The app also includes many ready-to-play settings, allowing you to enjoy custom sounds created by world-class piano technicians. You can connect your Android device to your piano via Bluetooth, wireless LAN, or USB cable. The app requires Android 5.1 or later.