Yes; both the song itself and (separately) the sound recording are protected.
Oussama Rahbani was born in 1965.
Ghassan Rahbani was born in 1964.
Mansour Rahbani was born in 1925.
Elias Rahbani was born in Lebanon.
Ziad Rahbani was born on January 1, 1956.
Ziad Rahbani was born on January 1, 1956.
Assi Rahbani was born on May 4, 1923.
Assi Rahbani was born on May 4, 1923.
Assi Rahbani died on June 21, 1986 at the age of 63.
Assi Rahbani died on June 21, 1986 at the age of 63.
Mansour Rahbani died on January 13, 2009, in Beirut, Lebanon of pneumonia.
Assi Rahbani was born on May 4, 1923 and died on June 21, 1986. Assi Rahbani would have been 63 years old at the time of death or 92 years old today.