This app is the most enjoyable way to enjoy with melody and chords with a Piano. This piano app is great! It has built in songs to learn from, many instruments, and a record function. Also you can change key size by going to the menu (top right corner, gear shape), also choices for double and triple boards. A great k-board app! Learn by yourself to be the great Pianist. This application is the most enjoyable way to play the melody and chords. Among the similar applications in the market, Pianist-Finger Touch Piano are considered the best application with 5-star voted always.