[3] He became a guitarist and singer with the group of harpist Alan Stivell who introduced him to traditional Breton music[3] and toured France in 1971.

[1][4] Before founding Malicorne, Gabriel and his then wife Marie Sauvet recorded the experimental album Pierre de Grenoble in 1973.

Arr., which featured English fiddler Barry Dransfield as guest;[7] he played traditional French tunes with acoustic guitar, and began to write and compose original songs.

[8] In 1986, the final year of Malicorne, Yacoub recorded Elementary Level of Faith,[9] an album of electric folk-rock, with the Hungarian composer Ivan Lantos and the singer and keyboardist Nikki Matheson.

[1] In February 1995 he performed at the Palais des Sports, in Paris, opening for Bernard Lavilliers, and in May that year at La Cigale.