Nikolaus Harnoncourt's 1964 recording of these pieces was the first to use 
Nikolaus Harnoncourt's 1964 recording of these pieces was the first to use period instruments. Debate exists as to whether the role assigned to the "tromba" in the second of these pieces was meant for trumpet or horn. Either Johann Altenburg or Johann Ludwig Schreiber may have been the intended trumpet soloist in the second of these pieces, since both were known for their clarino playing. Unusually, violins were (*) excluded completely from the last of these pieces. A recorder or a flageolet generally plays the part scored for the "flauti d'echo" in the fourth of these pieces. The harpsichord plays a 65 measure solo cadenza in the first movement of the fifth of these pieces. For 10 points, name this set of six concertos composed for the margrave of a German city by Johann Sebastian Bach.
Nikolaus Harnoncourt's 1964 recording of these pieces was the first to use period instruments.
Brandenburg Concertos [or Brandenburg Concerti]