monophonic
a single line of music same pitch
homophonic
melody with accompaniment
polyphonic
two or more melody lines that are heard at the same time
contrapuntal
similar to polyphonic mainly used in baroque music
thick
many sounds or instruments playing
thin
few sounds or instruments playing
unison
singing same part at same time
solo
one person
duet
two people
trio
three people
quartet
4 people
quintet
5 people
tutti
everyone playing together
counter melody
a second melody playing alongside main melody