Premiered in 1977, Coro has a peculiar arrange of 40 musicians and 40 voices
performing as soloists, each voice paired to an instrument. The piece explores
several themes related to the folklore of various regions–Chile, North America,
Africa. The texts are grounded on a popular level, based on love and work as its
themes, and an epic level, based on Residencia en la Tierra (Residence on Earth),
by Pablo Neruda.