Catalogued in RISM as “Concertos–A major; Manuscript copy; SI-Nf Ms. mus. 457” by Anonymus. RISM 540001102
Same music
The one encoded movement matches a Krommer concerto in A (RISM 551002432); the comparator writes the turn in bar 2 as grace notes, which the automatic comparison drops.
Attributed copies compared (1 of 2 encoded incipits match):
1.1.1 Concerto. Allegro · vl 1 · 14 of 14 pitches agree
4'E/4.A8''C4.E8C/4D{6EDC}8E{8FEDC}/'4E/4.A''8C4.E8C/4.Dqq6{EDC}r8E{FEDC}/'4.B8E''4.D'8B/4.8''CD{8EDC'B}/4.8AFalso RISM 600026045 1.1.1 Moderato
1.2.1 Adagio · vl 1 · no matching incipit among the attributed copies
'4B/''{8E6-'EE6-E}{E-EE-E}/No encoded incipit matches this one.
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.