Footnote:
[S.l.], [s.n.], between 1720 and 1780
Even though there are two soprano staves at the beginning of the score, respectively called 'Primo Canto' and Canto Secondo', only one soprano part is called for in the work
The inscription 'Originale' found on the first folio has led some scholars to believe that this ms. is in the composer's hand
GB-Lbl, Add. 14162, 30001581