I uploaded videos to show some functions on xPiano+ and xPiano, piano applications for android. I hope this will help someone who is interested in xPiano but don't know how to use.
How to use Player Mode
Player Mode is one of the main feature in xPiano+ and xPiano. It can be useful to learn how to play piano on Android.
xPiano+ and xPiano have many options. Please set options as you like to play comfortably.
Use Recording function of xPiano+ and xPiano to save your music idea quickly.