The chairman and members of the Lebanese musicians union called on Saturday the President of the Republic, Michel Sleiman, and outgoing Prime Minister Najib Mikati, to declare a national day of mourning for the death of the great Lebanese singer Wadih El Safi. There is no doubt that Wadih El Safi is one of Lebanon's greatest singers and actors, and that he has given the Lebanese song "its identity by developing folk and country singing,…