In this groundbreaking study, Anton Bierl uses recent approaches in literary and cultural studies to investigate the chorus of Old Comedy. After an extensive theoretical introduction that also serves as a general introduction to the dramatic chorus from the comic vantage point, a close reading of Aristophanes' Thesmophoriazusae shows that ritual is indeed present in both the micro- and macrostructure of Attic comedy, not as a fossilized remnant of the origins of the genre but as part of a still existing performative choral culture. The chorus members do play a role within the dramatic plot, but they simultaneously refer to their own performance in the here and now and to their function as participants in a ritual. Bierl's investigation also includes an unparalleled treatment of the phallic songs preserved by Semos.