Combined with the previous recording of Opus III and V, this publication completes the oeuvre of cello sonatas by Emanuel Siprutini. Born in a Jewish family, perhaps in Holland, he ar-rived in England following the "Jewish naturalization act" established in 1753 by King George II of England, and he settled in London as a wine merchant, concert performer and cello teacher, having among his students John Crosdill, the most famous British cellist of the eighteenth century. Leopold Mozart met Siprutini in 1764, during his stay in England. Struck by the cellist's talent, he tried to convince him to con-vert to Catholicism, but Emanuel remained serenely Jewish. Between 1756 and 1775 he published four books of cello sonatas which the Mozarts certainly owned, as one might think by finding fragments and ideas in Wolfgang's most beautiful works.