The source of this edition of Antionio Vivaldi's In Exitu Israel is the manuscript found in the 
Biblioteca Nazionale in Turin, Raccolta Renzo Guirdano, Opere Sacre Vol. II (No. 16). The score is inscribed: In exitu Israel del Vivaldi. In this work Vivaldi combines and antique style, as refelected by modal treatment, with Baroque tonality and basso continuo.