Each piano note is a thing. Each chord is a set, each melody a city. There’s a movement in every moment. Each key is a season and a mood. You can swap and mix different instruments. You can make Allegros, Andantes, Rondos, Nocturnes, Prestissimos, Adagios. Make a symphony. Then make another one. Create your Magnum Opus. That’s music and that’s life and it’s all an act, whether it is improv or a meticulous composition.