KNN being a ex musician my uncle think music conductor is a conman job KNN when my uncle was playing the music he or all his co players only watchout for the conductor when to start only KNN my uncle further confirmed it when 1 of my uncle's friend became a conductor for his church choir without trained in music KNN basically they just need to know when and which part of the music notes need to have crescendo by which instrument or singer and know which part of the concert area they are seated that's all KNN