Texture
Number of parts in a piece of music and how they relate to each other
Accompaniment
Musical background
Continuo
Bass line in baroque
Heterophonic
Two or more parts play the melody together but with small variations
Homophonic
Texture consisting of melody and accompanying
Monophonic
Single notes played at a time
Polyphonic or counterpoint
Texture with 2 or more parts which are different
Two part
Two melody lines
Imitation
Two or more parts following each other imitating but not necessarily exactly