State 4 different terms for describing musical texture and define them:

Possible answers:

Homophonic: A homophonic texture means that the various lines of music (perhaps played by different instruments or voices), are all moving together, so the texture is chordal, and literally means 'sounding together'.

Monophonic: This refers to a single line of music, which moves completely independantly and is unaccompanied. 

Unison: This refers to all the voices or parts playing the same music, with no harmony parts added.

Polyphonic / Contrapuntal: This literally means 'different sounds or voices'. Polyphonic music has parts that weave in and out of each other. This can be in an imitative style, or like a fugue, or can have several completely independant parts.

Heterophonic: Different versions of the same melody are played simultaneously. 

Antiphonal: The texture is split into 2 or more parts (or choirs), which often sing alternate phrases or sections of the music.