polyphony

As a noun polyphony

is (music) musical texture consisting of several independent melodic voices, as opposed to music with just one voice (monophony) or music with one dominant melodic voice accompanied by chords (homophony).

As a proper noun harmony is

or harmony can be (fandom slang) the ship of characters.

As nouns the difference between taxonomy and polyphony

is that taxonomy is the science or the technique used to make a classification while polyphony is (music) musical texture consisting of several independent melodic voices, as opposed to music with just one voice (monophony) or music with one dominant melodic voice accompanied by chords (homophony).