Catalogued in RISM as “?Overtures?–E♭ major; Manuscript copy; D-Hs M B/2463” by Anonymus. RISM 450026357
Same musicSurname only
The one encoded incipit matches the violin Allegro (incipit 1.2.1) of a concerto headed only 'Vogel' (RISM 190021287), where the attribution is qualified as conjectural.
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Attributed copies compared (1 of 1 encoded incipit match):
1.1.1 Allegro moderato · vl · 10 of 10 pitches agree
'8B/{''E6GF}{8EE}/{6EFGA}{8BD}/8'B/{''E6GF}{8EE}/{6EFGbA}{8BD}/{E6DE}{8'BA}/{6GEGB}{''E'B''EF}/{G'BAB}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.