Bach, Johann Christian
4 sonatas for harpsichord/pianoforte and viola da gamba:
Sonata di Cembalo e Viola da Gambo obligato – Bach, in B maj., WarB. B 2b
Sonata, a Piano forte, e Viola da Gamba obl:to di Sig: Bach in C maj, WarB B 3b
Sonata Viola da Gamba / Sonata Cembalo, in G maj., WarB. B 4b
Sonata a Piano Forte e Viola da Gamba di G C Bach, in F maj., WarB. B 6b
London
WarB 2b, 4b, 6b: US-NY, Kulukundis collection (with an autograph inscription), depositum in D-LEb Kulukundis 1.5
WarB 3b: PL-Pu 7836 (Maltzan), pp.103-110 (partial autograph)
https://www.bach-digital.de/receive/BachDigitalSource_source_00025085 (Kulukundis), https://polona.pl/item/28-utworow-na-viole-da-gamba,Njg1MzE0OTM/103/#info:metadata (Maltzan)
Güntersberg, Garland (Warburton-1999 vol 48:3, facsimile of Favorite Rondò )
A version for harpsichord or pianoforte and violin was edited in: Johann Christian Bach, Six Sonatas for the Harpsichord or Pianoforte; with an Accompagnament for a Violin [...], op. X, London, Welcker, 1773 and subsequent editions (RISM RISM, Einzeldrucke vor 1800, Kassel, Bärenreiter, 1971-2012 B333-342), n. 1 (Warb B 2), n. 2 (Warb B 3), n. 3 (Warb B 4), n. 5 (Warb. B 6, only first movement).
The second movement of the sonata in F maj., Warb. B 6b, was edited as Favorite Rondò | For the Harpsichord or Forte Piano With an | Accompanyment For A Tenor | Composed By Sig. r Bach , s.n. (?Longman & Lukey), s.d. (?1773). It is a shortened version of the last movement of a concerto for oboe and orchestra Warb C 80.
ID 300044517 (Maltzan)
Peter Holman, Life after Death: the Viola da Gamba in Britain from Purcell to Dolmetsch, 2010
, p. 226 http://www.guentersberg.de/noten/en/g226.php
Ernest Warburton, The Collected Works of Johann Christian Bach, with Thematic Catalogue, New York, London, 1999
, pp. 25-28