most classical musicians r in the order

[Winyan Numpa]

so

why is this the case?

im not quite sure honestly. obv thereis a connection between higher class and secret societies + in europe it was difficult to become a composer if u were born a peasant 

but there is also a great emphasis on musical creation, divine order, etc in the order so 

i think everyone within these systems is either a musician, magician, urban planner, philosopher, artist, etc etc 

all of which create the structures of perception and society, hence masonry