Touch Pianist - Tap in Rhythm and Perform Your Favourite Music

Touch Pianist is a musical toy / instrument that allows the user to perform hard-to-play classical piano music favorites (from composers like Beethoven, Mozart, Bach, Satie, Debussy to name a few) just by tapping the rhythm of the piece's particular sound events on a computer keyboard or a touch screen.

滑动屏幕就能“弹钢琴”——不一定准，但操作起来像是在创作。