Detail from the autograph of the Cantata pastorale, 1716: Non sò qual più m'ingombra
Source: Musiksammlung der Staatsbibliothek, Berlin
Detail from the autograph score of Cantata da camera: Ombre tacite e sole, 31.10.1716
Source: British Library
Both the above cantatas are available for purchase through this site.
The Composer's Words
"...where andante-lento, in a way that exludes the pathetic, but let it have an
amorous beauty that doesn't lose tunefulness;
And in all the arias, nothing melancholy..."