Rezas Populares do Brasil, Anamak, Amkéa and Annazone, are vocal works. All the sounds on this disc originate with the Brazilian singer Anna Maria Kieffer. Two works, Anamak and Amkéa, have an "orchestral accompaniment", composed of tropical bird songs. Making use of elements of electroacoustic music and sound poetry, the music expresses wonder at Brazil's tropical beauty and, ultimately, an intense love of the abstraction of words and musical forms.