Which proportional systems did raphael most likely use to organize the composition of the school of athens

You know what i love about this sight when ask a dumb question it is immediately answered but when i ask a real question it takes hours to get answered

Organum was first developed by religious singers adding another melody directly above the chant and mirroring the chant line. true false

Of the sound files in this unit, which renaissance work do you like best? why?