Transposition
Part of speech: noun
Definition: A shift of a piece of music to a different musical key by adjusting all the notes of the work equally either up or down in pitch.
Reversal
Part of speech: noun
Definition: The state of being reversed.An instance of reversing.A change in fortune; a change from being successful to having problems.
Example sentence: These days we're all hyper-aware of the canonical way in which stories are supposed to play out - people are taught all about three-act scripting and where to put the reversal and all of that - and I think we can do more interesting narratives.