Pygmy songs has long been polyphonic well just before their discovery by non-African explorers on the Baka, Aka, Efe, together with other foragers from the Central African forests, from the 1200s, which can be at the least 200 a long time prior to polyphony formulated in Europe. Note the https://holdencjl68.blogacep.com/36349655/the-ultimate-guide-to-tourism-and-travel