A free app for Android, by Umito.

If you are looking for a fast, simple, and fun way to learn how to play the piano, you have found the perfect app! Mini Piano Lite is an interactive learning app that lets you learn how to play the piano and compose your own songs.

It is designed to be very fast and responsive, and it allows you to choose a beautiful sampled piano or select one of the 128 different midi instruments.

You can also choose to learn to play a song, and record your songs as a MIDI file and export them to MP3, AAC, or WAV. You can use these songs as ringtone.