A very versatile musician, Gérald Muller plays the bass and the double bass in a wide variety of musical genres Argentine tango, Gypsy swing, pop, funk, ballads...

He as played with the American saxophone player Jerry Bergonzi, with Sylvain Beuf, Marcel Azzola, Zool Fleisher,denis Leloup and is currently spending most of his time with the trio of the American guitarist Rick Hannah.