Philip Pickett has suggested an interpretation of this collection involving allegorical tableaux, the fifth section of which can be interpreted as Hercules's choice between Vice and Virtue. One section of this collection may have intended for a bird flageolet or for two recorders tied together to be played when this work calls for a "fiauto d'echo," or echo flute. One solo in another part was likely written for an instrument built by Michael Mietke, and that harpsichord virtuosic solo appears in the fifth section of this work. Its last section 
Philip Pickett has suggested an interpretation of this collection involving allegorical tableaux, the fifth section of which can be interpreted as Hercules's choice between Vice and Virtue. One section of this collection may have intended for a bird flageolet or for two recorders tied together to be played when this work calls for a "fiauto d'echo," or echo flute. One solo in another part was likely written for an instrument built by Michael Mietke, and that harpsichord virtuosic solo appears in the fifth section of this work. Its last section lacks violins, while the first section was expanded to be the only section with four movements in this work. For 10 points, name this set of six concerti composed for a German margrave by Johann Sebastian Bach.
Philip Pickett has suggested an interpretation of this collection involving allegorical tableaux, the fifth section of which can be interpreted as Hercules's choice between Vice and Virtue.
{Brandenburg Concertos} [or {Brandenburg Concerti;} or Brandenburg Concerto No. 4 before “natural trumpet”]