The three sonatas by Bach of this album are likely to rank among the most famous and most performed compositions for viola da gamba, and they represent one of the tops of the literature for this instrument. Nevertheless for this recording was used the viola da braccio, according to the practice of the Baroque era which precedes and accompanies the decline of the viola da gamba. These pieces are composed as a trio sonata, a favorite genre by the Maestro. They are mainly based on polyphonic writing, in which no instrument prevails over the other. In some pieces the organ was used in place of the harpsichord, a choice of the performers to explore new varieties of timbre and offer different instrumental colors.