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.

スワイプで“ピアノ演奏”。正確な音は出ないけど、毎回作曲した気分に。