Born in 1961 in Tunis, Tunisia, Moncef was blind at birth. Flown to Switzerland to receive treatment on his eyes at the age of 2, he was adopted by a Swiss family shortly after. At 6 he began to take piano lessons, strongly encouraged by his adoptive father, a big Jazz fan who would often play records by Louis Armstrong or Fats Waller at the family's house. Blessed with a remarkable auditory memory that allowed him to learn and replicate any piece by ear, Moncef started to develop his own style. In 1987 he obtained a music teacher's degree from the Conservatory in Geneva, where he still teaches Jazz improvisation today.
A professional musician since 1983, Moncef quickly asserted himself as one of Switzerland's leading Jazz artists, thanks in part to the body of work he assembled with his Trio. In the course of his career he has played with the likes of Bob Berg, Alvin Queen, Reggie Johnson, Harold Danko, John Stubblefield, Joe LaBarbera, Michael Brecker, Larry Grenadier, Dee Dee Bridgewater, Bill Stewart, Idris Muhammad, James Cammack, Jack DeJohnette, Tom Warrington, Scott Colley, Sangoma Everett, and Billy Brooks, among many others.
In 1993 his Trio was the opening act for Tete Monteliu and Michel Petrucciani. The rest of the 1990's saw him tour all of Europe as well as India, Australia, Africa, Japan, the United States and Canada as a headliner. In 1994 he delighted the audience at the Vancouver and Montreal Jazz Festivals with brilliant performances. The following year he performed in Africa, where he and Youssou N'Dour became close friends. The two have since then played together on numerous occasions, developing a new African-Jazz sound, and were the main protagonists in the acclaimed 2006 documentary entitled “Return to Gorée” (CAB Productions). The project followed several musicians as they travel the route of West-African slaves from Senegal to the United States, while revisiting the musical evolution from Negro spirituals to Gospel to Jazz along the way.