Jean-Baptiste began playing the double bass with his father, Bernard Salles, at the Pau Conservatory, where he won a first prize. He took classes during the Capbreton summer schools with double bass players such as Thomas Martin, Wolfgang Guttler and Giuseppe Ettorre.

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A qualified double bass teacher, he holds posts at the conservatories of Pau, Orthez and Montardon (France).

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He is a double bass player with the Orchestre de Pau Pays de Béarn.

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Alongside his career as a classical bass player, Jean-Baptiste also plays the electric bass and composes music for various different groups, with whom he performs live all around the South of France. He has recorded several CDs.