The Violin and the Mandolin, accomplices and rivals: in the field of musical literature of XVIII and XIX centuries, many violinists and composers who knew the mandolin transposed their knowledge from one instrument to the other: the bow’s beats turned into strokes of the plectrum, while arpeggios, double string chords and virtuosities began to be used very frequently. Giuliani was a violinist, a harpist, master of harpsichord and singing; what is clearly evident is that the composer had a particular skill and a rich inspiration in making the instruments talk together, thus obtaining the most of their timbre’s variety and their technical and expressive possibilities. The Ensemble Baschenis took the manuscripts of the Quartets directly from Gesellschaft der Musikfreunde in Vienna and edited them directly from the microfilm.