Music is cryptology, no?
Compositions are put into code. This code is cracked by the performer who deciphers the notes on the page into the music on her piano whose white and black keys are another cipher. The music then floats into the soul and ears of the listener who decodes the sound to receive inspiration and meaning which circumvents to the composer and the performer.
Every stage, from composer to listener, is a cryptologist.
Music is a code that we want and need to crack. Our humanity not only demands it but thrives on it.