A lengthy solo passage for harpsichord caps the first movement of one piece, and another has two fast movements separated by two slow chords.
Michael Marissen argues that this work's use of major mode keys of the soft hexachord was intended to complement L'Estro Armonico.  Its composer's Sinfonia in F Major is an early version of its first portion lacking the third movement and the polonaise of the fourth movement.  A lengthy solo passage for harpsichord caps the first movement of one piece, and another has two fast movements separated by two slow chords. The third of these works divides the orchestra into three parts, while the second features solo violin, flute, oboe and trumpet. Catalogued as BWV 1046-1051, FTP name this collection of six instrumental pieces by Bach, named for a Margrave.
Michael Marissen argues that this work's use of major mode keys of the soft hexachord was intended to complement L'Estro Armonico.  
Brandenburg concertos