The then - director of the Rashidiyya Orchestra , Salah el - Mahdi , wrote the Tunisian national anthem .
The then - director of the Rashidiyya Orchestra , Salah el - Mahdi , eventually also became the leader of the music department of the Ministry of Cultural Affairs .
The then - director of the Rashidiyya Orchestra , Salah el - Mahdi , wrote the Tunisian national anthem , and eventually also became the leader of the music department of the Ministry of Cultural Affairs .