Use the following persistent identifier: http://nrs.harvard.edu/urn-3:hul.ebook:CHS_Nagy.Pindars_Homer.1990.
13. The Genesis of Athenian State Theater and the Survival of Pindar’s Poetry
From the text of Aristophanes Birds 786–789, we witness the central program of the City Dionysia in a given year, 414 B.C.: three days, each taken up with three tragedies, one satyric drama, and one comedy. 
The old-fashioned Aeschylus wins over the innovative Euripides in the judgment of the god Dionysus himself (1467 and following), who is after all the raison d’être of the City Dionysia.