Catalogued in RISM as “Concertos–G major; Manuscript copy; CH-EN Ms A 120” by Anonymus. RISM 400187870
Probable
Identical rhythm and descending repeated-note sequence to a Valentini concerto in G (RISM 806549972), but only five distinct pitches; a companion copy in the same collection (400187877) matches another Valentini concerto.
Attributed copies compared (0 of 1 encoded incipit match):
1.1.1 · vl 1 · 5 of 5 pitches agree (too short to count)
{8''DD}-D{DD}-D/{DC}-C{C'B}-B/{BA}-A{AG}-G/''{8DD}8-D{DD}8-D/{DC}8-C{C'B}8-B/{BA}8-A{AG}8-G/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.