At five years old he picked up playing the piano, switched to classical guitar at eight, then turned to rock in his teens, and finally settling for the upright bass when he was 16.

He got formal musical training at the Conservatoire de Paris, where he studied with François Rabbath, who taught him his special technique of playing arco.

Alboreá (1995) was his next album release, featuring his quartet including Jean-Louis Matinier (accordion), Jacques Mahieux (drums), and Yves Torchinsky (bass).

Garcia-Fons has collaborated with jazz musicians like Jean-Louis Matinier, Michael Riessler, Sylvain Luc, Nguyên Lê, and Michel Godard, and contributed to recordings of Gerardo Núñez and to Middle Eastern players such as Kudsi Erguner, Dhafer Youssef, and Cheb Mami.

His interest in this music leads him in 2019 to participate, at the invitation of the Metropolitan Museum in New York, in a tribute concert[5] organized as an extension of the exhibition: the sacred lute, the art of Ostad Elahi[6] (2014-2015).