The fifth of them is a D major work whose second Affetuoso movement centers on the flute, violin, and harpsichord soloists.  
The fifth of them is a D major work whose second Affetuoso movement centers on the flute, violin, and harpsichord soloists.  The third of them has a pair of chords known as a Phrygian cadence rather than a slow movement, while the fourth of them calls for two "echo flutes," which may be a reference to the sopranino recorder.  The last is a B flat major work which oddly has no parts for violin, while the first is an F major work which features an extra fourth movement.  They are written in the Italian style, alternating fast, slow, and fast movements, and were composed around the year 1720.  FTP, name this group of six concertos written by Johann Sebastian Bach for a German margrave.
The fifth of them is a D major work whose second Affetuoso movement centers on the flute, violin, and harpsichord soloists.  
the Brandenburg Concertos