During the late sixteenth and early seventeenth centuries, Venetian society and politics could be considered as a "polychoral culture." The imagination of the republic rested upon a shared set of social attitudes and beliefs. The political structure included several social groups that functioned as identifiable entities; republican ideologies construed them together as parts of a single harmonious whole. Venice furthermore employed notions of the republic to bolster political and religious independence, in particular from Rome. As is well known, music often contributes to the production and transmission of ideology, and polychoral music in Venice was no exception. Multi-choir music often accompanied religious and civic celebrations in the basilica of San Marco and elsewhere that emphasized the so-called "myth of Venice," the city's complex of religious beliefs and historical heritage. These myths were shared among Venetians and transformed through annual rituals into communal knowledge of the republic. Andrea and Giovanni Gabrieli and other Venetian composers wrote polychoral pieces that were structurally homologous with the imagination of the republic. Through its internal structures, polychoral music projected the local ideology of group harmony. Pieces used interaction among hierarchical choirs - their alternation in dialogue and repetition - as rhetorical means, first to create …