Catalogued in RISM as “Symphonies–C major; Manuscript copy; SK-J H-629” by Anonymus. RISM 570005119
Same music
The Allegro, Andante and Finale derive from the overture to La clemenza di Tito (its incipits 1.1.2, 1.2.1 and 1.3.1), transposed from B-flat to C. The added Minuetto is not identified and is not attributed here.
Attributed copies compared (2 of 4 encoded incipits match):
1.1.1 Allegro · vl 1 · 16 of 32 pitches agree (too short to count)
{''6C'''C''C'''C}{''6C'''C''C'''C}{''6C'''C''C'''C}{''6C'''C''C'''C}/{''6C'''C''C'''C}{''6C'''C''C'''C}{''6C'''C''C'''C}{''6C'''C''C'''C}/4C-'6{B''B'B''B}'{B''B'B''B}'{B''B'B''B}'{B''B'B''B}/4B-8-{FFF}/{xFG}4G8-{EEE}/{nEF}4F8-1.2.1 Andante · vl 1 · 12 of 12 pitches agree
''4At8G/4Bt8A/4Gt8F/4'''Dt8C/''4Bt8A/4Gt8F/''4G8F/4A8G/4F8E/4'''C8''B/4A8G/4F8E/also RISM 270001204 1.2.1 Andante espressivo
1.3.1 Minuetto. · vl 1 · 5 of 8 pitches agree, the attributed incipit starting 2 pitches into this one (too short to count)
'4FA''C/2C{8DE}/4.F8G4A/=35/'2.G/2A({8B''CD})/qD4C'BA/qA2B4-/1.4.1 Finale. Allegro · vl 1 · 19 of 19 pitches agree
''{6CDEC}{DEFD}/{EFGE}{FGAB}/'''{C''GAA}'{6B''CD'B}{''CDEC}/{DEFD}{EFGA}/{BFGG}{GEFF}/also RISM 270001204 1.3.1 Allegro
also RISM 230006006 1.3.1 Allegro
also RISM 1001179385 1.34.1 Aria Andante
also RISM 270001204 1.35.1 Aria. Andante
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.