I have studied classical music, and a friend of mine applied to a master in conducting. In the entrance exam they had to listen to a 4-part piece and when it wa

I have studied classical music, and a friend of mine applied to a master in conducting. In the entrance exam they had to listen to a 4-part piece and when it was down they had to write it down. Genius level would however be the following: There is a rumour about a mass that the Catholic church held secret (I believe it was an Allegri mass). One day Mozart went to the service and when he got back he wrote it down.