This short concerto by J. S. Bach is believed to be a transcription of a lost original concerto in G minor for violin or oboe. The extraordinarily beautiful second movement appears as the introductory sinfonia to Cantata 156, where it is for oboe solo with strings and continuo.
In this harpsichord version, that movement has considerably more ornamentation in its melodic line, and it has the strings playing pizzicato, which better balances the plucked sound of the harpsichord.
Enjoy this lovely music, and especially the second movement:
