Anonymous (Johann Georg Lang?)
Sonata in G à Gambetta Solo con Basso del Sigre Anonymo in G major
D-ZL (without shelfmark)
The Gambetta or Gambetta Inglese or Violetta di Gambe Inglese , in use in Augsburg and in the milieu of the landgrave of Hessen-Darmstadt, must have been, judging by the compositions for this instrument by Sales, Lang, Neubaur, Ursenbeck-Massimi and an anonymous author, an instrument in the tenor-contralto register. The presence of metal strings for resonance or plucking with the thumb (baryton) can be assumed but is not certain.
The hypothesis that the composer might be Lang is by F. Flassig.
Fred Flassig, Die solistische Gambenmusik in Deutschland im 18. Jahrhundert, Göttingen, Cuvillier Verlag, 1998
, pp. 212-213, 278