Simply it's a choir. So 16 voices is a choir of 16.
song
You call it harmony.
madrigal also, a capella
round
TEXTURE :)
There is a list of the voice cast at the related link below .
because you can drive at sixteen and that normally means you get a car.
polyphony
song
16 years of age. I think that may be why they call it a sweet sixteen.
cantata
parts
birdy
You must call Browning.
You call it harmony.
Organum
You will have to call Browning with the sn to find out.