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The analogy or metaphor of choir : is it mentioned in philosophy?

Hello (sorry for my level of English) 

Are there texts which mention choirs (opera, for example) in philosophy? (including choirs in Greek tragedy). What is the esthetic analysis? 

I asked myself questions about the role of each individual, of each member of the chorus, and about a possible paralelism with society. Was this specific point mentioned? 

Thank you!
gpt
Zizek writes about this in How To Read Lacan, more specifically in chapter 2: "The Interpassive Subject: Lacan Turns a Prayer Wheel". Essentially, he analyzes the choir of the Greek tragedy in terms of the big Other that enjoys the theatrical performance for the audience. The function of the choir is to enable the audience to engage with the performance in an interpassive manner, in which the choir takes care of the "emotional commentary" instead of us having to do it ourselves. He makes similar points with regard to canned laughter in sitcoms etc.