Milan: Ricordi, n.d.(1821). Plate 1907.
Public Domain [tag/del]
- Adagio (E♭ minor) - Allegro ma non troppo
- Andante sostenuto (B♭ major)
- Tempo di Menuetto
Possibly from Gerke's Opp.1 (but these are in C minor, A major and D minor acc. to the Dutch Royal Library...), Op.7 or Op.16 (which are all sets of violin duets, according to Fétis?) (Indeed his Op.16 duo in E♭ major also goes by the name "Cinquième duo concertant, Op.16", at least in its Breitkopf incarnation of ca.1823...)
Tchaikovsky's Op.72 No.3 is dedicated to an August Gerke, I gather...?