These materials are from the “Schranck II”, the rich music collection of the Saxon State and University Library in Dresden. This treasure trove includes many an anonymous compositions produced in creative ecstasy but omitting the name of the author.The Internet publication of these works has led to the identification of many of them and their assignment to various composers, but the authorship of some works found in this collection – including the seven concertos scored for flute, violin, violoncello, and continuo heard on the present CD – continues to be a mystery.