Catalogued in RISM as “Symphonies–G major; Manuscript copy; D-Bsa SA 4677” by Anonymus. RISM 469467700
Same music
Matches the 'Seconda Parte Sinfonia' (incipit 1.16.1) of the La Galatea excerpts, the sinfonia to Part Two, not the opening sinfonia.
Attributed copies compared (1 of 1 encoded incipit match):
1.1.1 Allegro assai. · cemb · 20 of 20 pitches agree
{8''GDGB}{6''AGFE}{8''D'''D}/{8''GDGB}{6''AGFE}{8''D'''D}{8''GDGB}{6AGFE}{8D'''D}/{8''GDGB}{6AGFE}{8D'''D}/also RISM 469250400 1.1.1 Sinfonia 2do. Allegro assai.
Catalogue data and incipits come from RISM (Répertoire International des Sources Musicales), CC BY 4.0. Incipits are rendered with Verovio. Source and data: https://github.com/aaymeloglu/rism-attributions.