The Brandenburg concertos continue with a fourth for solo violin, with two recorders and the usual string orchestra and harpsichord. The fifth uses flute, violin and a solo harpsichord and the sixth, possibly written in Weimar, for two violas, two violas da gamba, the earlier form of bowed string instrument, cello and harpsichord.
Recommended recording
Bach: Brandenburg Concertos 4 - 6, played by the Capella Istropolitana and soloists, directed by Bohdan Warchal.
Naxos 8.550048
