sentences:  He also added recitatives and combined acts 3 and 4 into a single final act.Original French version
  
  In May 2012 Vlaamse Opera in Antwerp and Ghent presented the first performances of the original French opera in a four-act version, which had been completed in 2012 with additional music by Giorgio Battistelli.It used the critical edition prepared by musicologist Roger Parker who has written extensive notes on the evolution of this original version.