The rhetorical process functioned in many areas other than speech: Curtius wrote about 'rhetorical landscape representations' while Serpieris speaks of 'la retorica al teatro' (the rhetorical use of theatrical space), and music historians have learned that the language and approach of musical theory in the Middle Ages were borrowed directly from medieval grammar and rhetoric.
"The work is not the performance", Companion to Medieval & Renaissance Music. (1997). Oxford University Press. ISBN 0198165404.