Describe the use of polyphony in this piece. Also what techniques are used?
For the student,
Since it is a part of Brainmass.Com's policies that I can't write homework for you, I must base my answers upon researched material. The following passages will answer the first question you asked about the polyphony from this particular piece Bach wrote~
***Bach Cantata 80 - chorale fugue~
***Describe the use of polyphony in this piece.~
PS. The OTA uncovered the following passage for reference purpose for the student to understand this particular piece more in depths from another music scholar's point of view. If the student needs to use this source in a future paper, the student Should and Must cite the source appropriately. All materials needed for citing the source are provided for the student's convenience.
From OTA's comments and suggestions Based on researched material; According to the following present day scholar, Alexandra Amati-Camperi, Ph.D~
Cantata 80, Ein feste Burg ist unser Gott (A mighty fortress is our God), for the Festival of the Reformation (31 October), is a revision of a Lenten cantata written in Weimar in 1715 for which the music is almost all lost (BWV 80a Alles, was von Gott geboren). The date of the later Cantata 80 is still doubtful. We only know that it originated in Leipzig and that it was performed in 1740. Cantata 80 is a chorale cantata, i.e. a cantata that incorporates in some of its movements the chorale tune "Ein feste Burg" by Martin Luther, which the congregation knew well. The text of the cantata, besides the four verses of Luther's chorale, was written by Salomo Franck (who paraphrased I John 5:4 for movement 2).
The Reformation Cantata has always claimed a special place in Bach's cantata oeuvre. This is partly because it was printed in score by Breitkopf and Härtel ...
The use of polyphony in Bach Cantata 80 - chorale fugue is rationalized.