Polyphonic texture, also called
polyphony, is the least popular of the three main formal textures. The other two types besting monophonic and homophonic texture.
Polyphony is most commonly associated with Baroque and Renaissance music, as well as the music of the composer Johann Sebastian Bach.
Polyphonic texture definition:
Polyphonic texture, is when there are multiple independent melodies being played or sung at the same time.
The term polyphonic comes from the Greek words poly, meaning “many” or “multiple”, and phonic, meaning “sound” or “voice”.
Because the other two main types of texture, homophonic and monophonic texture, only deal with one melody line at a time,
polyphony is thought of as more complex and dense.
https://hellomusictheory.com/learn/polyphonic-texture/