Scholars debate whether the final part, assigned the number fourteen, of this work was completed before the composer's death and whether part of the manuscript was lost. The second section introduces syncopation to the piece, and the third section introduces melodic inversion. Most sections of the piece are named using the term Contrapunctus. The motif spells out the composer's last name using a notation common in 18th Century Germany. Name this 
Scholars debate whether the final part, assigned the number fourteen, of this work was completed before the composer's death and whether part of the manuscript was lost. The second section introduces syncopation to the piece, and the third section introduces melodic inversion. Most sections of the piece are named using the term Contrapunctus. The motif spells out the composer's last name using a notation common in 18th Century Germany. Name this piece by Johann Sebastian Bach.
Scholars debate whether the final part, assigned the number fourteen, of this work was completed before the composer's death and whether part of the manuscript was lost.
(The) Art of (the) Fugue (or Die Kunst der Fuge)