Martin luther was responsible for the increase in use and popularity of the a) chorale b) motet c)cantus firmus d) mass e) classicism

A) Chorale

Explanation:

As part of his set of reforms, Martin Luther (1483-1546) advocated changes in masses and celebrations to give more space to church sung music, defining choirs as an integral part of spiritual experience.

The decision led to an evolution of corals in Germany. The famous cantatas Johan Sebastian Bach (1685-1750) were taken from Luther's philosophy, though more than 100 years later.

melody. a series of single tones which add up to a recognizable whole is called a what kind of layers of sound are heard melody or harmony. how many layers