Mefistofele

Mefistofele (Italian pronunciation: [mefiˈstɔːfele]) is an opera in a prologue, four acts and an epilogue, the only completed opera with music by the Italian composer-librettist Arrigo Boito (there are several completed operas for which he was librettist only). The opera was given its premiere on 5 March 1868 at La Scala, Milan under the baton of the composer, despite his lack of experience and skill as a conductor.