Google says: "Dynamics means how quietly or loudly a piece of music should be played. Dynamics are an important way of conveying the mood of a piece and your use of dynamics is a marked element of your performance. Composers use dynamics to change the mood."
Very very clean . This is so well done . If i could give a small feed back , perhaps add a bit of phrasing so the piece feels like its moving forward rather then just playing notes. But this is so brilliant to listen to!