'''Sonata in E minor for flute or recorder and basso continuo''' by J. S. Bach (BWV 1034) is a sonata in four movements:
* ''Adagio ma non tanto''
The basso continuo can be provided by a variety of instruments. For example in complete Bach recordings, Stephen Preston on Brilliant Classics (originally recorded by CRD UK) is accompanied by harpsichord and viola da gamba while on Hänssler Classic Jean-Claude Gérard is accompanied by piano and bassoon.
The piece is largely believed to have been written during Bach's Cöthen period (1717-23), when he was employed as Capellmeister for Prince Leopold of Cöthen. However, there is some evidence that this may have been written slightly later, after Bach's move to Leipzig.[http://www.laphil.com/philpedia/piece-detail.cfm?id=2992 "Piece details"], Los Angeles Philharmonic