The closest thing that I can say among all of these answers would be improvisation. The definition of improvising is adapting to the situation in a better manner appropriately. So let's say when a musician is already on stage and makes a mistake while playing the guitar, he has to improvise a bit so that his mistake will not look like one. He is spontaneously creating something while he is on the spot. In a sense, he is improvising his original work and making something somewhat different.
Check out this link.
http://takelessons.com/blog/piano-pop-songs-for-everyone-z06
Also songs from movies or plays are also good.
Answer:
dynamic is the answer in that blank
