The last lime (Bandiera rossa trionfera) shoud be repeated four times followed by "E viva la pace e liberta" (And long live the peace and liberty)This song against fascism used to be sung after World War II, celebreting New Italian Republic mainly by communists. (I don't know exactly. It was before my birth, anyway.)
My spelling may be wrong, could any Italian check up?
Regards
Teru