Ca ira : The refrain of a famous song of the French Revolution.

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Taxonomy
Ça Ira, Roger Waters, opera, Waters, free encyclopedia, Performances, Rome, Scene 2, Bird, Scene 3, Scene 4, Track listing, libretto, Recordings, concert performances, Commune de Paris, the Paris Opera, English.

Defination from the web:
ça ira. This article needs additional citations for verification. Please help improve this article by adding reliable references. ... Ça Ira has received good reviews. ... So far, there have been two concert performances of Ça Ira in Rome and one full production in Poznań. ...