Oriental music and singing seduced him at a young age, and he devoted part of his early years to it. His voice is well suited to classical oriental singing: Oum Kalthoum, Warda ... But he returns to the sources, remembering the lullabies of old grandmothers, the harvest songs, the powerful rhythms of festivals and weddings, the voices of women and men resonating in the plains. He thus defines himself by the music he makes, a work of an archaeologist who seeks in the bowels of the earth sounds so familiar and yet so distant. 

In 2014, his project "Bargou08" affirms the strength and relevance of ancestral popular musical traditions and invites younger generations to reclaim and demand more of these parts of Tunisian culture. Songs as old as the earth come back to life. Nidhal clothes them with electrorock touches following the trace of Mezoued in his creations "Alphawin" (2016), then "Chaouia" (2019) which is a study of the rhythms and fusions suggested by the soul of rhythm; an undivided universe that blends times of old with ours through the force of a creative moment. Since his meeting with the French musician Benoist Este-Bouvot, "Gourbi" was born (project in progress in 2020) a title that evokes a makeshift dwelling made by assembling diverse, fragile and precarious materials. It represents the home of the marginalized and disadvantaged. "Gourbi" echoes both shores of the Mediterranean and welcomes the rich sounds and many melodies of a fragile world. He works for a rurality greater than a countryside, and a town smaller than a street.

In 2021 "Rébétiko-Maalouf" was born within the l’Art Rue framework, building bridges between Greek and Tunisian music of the 1920s.